試驗段長度 的英文怎麼說

中文拼音 [shìyànduànzhǎng]
試驗段長度 英文
working section length
  • : 名詞(古代占卜用的器具) astrolabe
  • : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
  • : Ⅰ量詞(部分) section; segment; part; paragraph; passage Ⅱ名詞(姓氏) a surname
  • : 長Ⅰ形容詞1 (年紀較大) older; elder; senior 2 (排行最大) eldest; oldest Ⅱ名詞(領導人) chief;...
  • : 度動詞[書面語] (推測; 估計) surmise; estimate
  • 試驗 : trial; experiment; test
  • 長度 : length; longitude; size; extent; footage
  1. It was suggested that eric - pcr could substitute for rapd in research related to the genetic identification and genetic diversity in auricularia and other edible and medicinal fungi : 2 to a certain extent, genetic differences among auricularia strains tested in this study did not have necessary relativity with their geographical origins respectively ; 3 in this study, genetic diversity in a. polytricha was higher than that in a. auricula : 4 in this study, a. fuscosuccinea had a higher homology to a. auricula than to a. polytricha ; 5 morphological characteristics validated the results from eric - pcr and provided a potential explanation for the higher similarity coefficient between a. auricular and a. fuscosuccinea ; 6 southern hybridization was employed by choosing a strain from a. auricula as a probe which hybridized with a. auricula and a. fuscosuccinea except a. polytricha, further confirming the veracity of the results from eric - pcr ; 7 in this study, isozyme analysis could not cluster the 7 strains from three auricularia species to different groups efficiently ; 8 2 strains from two auricularia species revealed high conservative degree and the restriction fragment patterns by 4 kinds of restricted enzymes showed no diversity

    本研究中,木耳屬2個種的2個菌株在its區域表現出較高的保守性, 4種限制型內切酶的酶切圖譜沒有顯示出多態性;增加內切酶種類及供菌株數量,有可能獲得具有多態性的限制性內切酶酶切圖譜; 9本實中, its區域的真菌特異性引物與真核生物通用引物對于擴增效果無較大差異,擴增片均為650bp左右; 10根據形態學實、 eric - pcr實以及southern雜交實的結果分析,紫木木耳屬種質資源的遺傳鑒定和遺傳多樣性評價耳極有可能是毛木耳種的一個變種; n .本研究中所用的gutc法是一種適用於木耳屬菌株基因組洲a快速提取的方法; 12 .傳統的形態學分類法和現代的分子生物學分類法,兩者的關系是相輔相成,互為
  2. It is the key of ebfs, therefore, furthermore calculation about link are carried out in this thesis, introduced achieved research, summarized the affect of link on whole capability in the first, the second, numerical calculation are proceeded on link with ansys : with the purpose of discussing yielding mode critical length of link, established five different specimens ; with the purpose of discussing the influence of h / tw of web, b / tf of flange and h / b, established eighteen different specimens ; with the purpose of discussing the affect of stiffener, established four different specimens, and elaborated the affect of stiffener on link based on achieved test researches

    因此,本文對耗能梁進行進一步計算分析,概述耗能梁對整體性能的影響,並利用有限元程序ansys對耗能梁進行數值計算:針對耗能梁的屈服類型建立5種不同的模型,計算討論耗能梁屈服類型的劃分;針對耗能梁腹板高厚比、翼緣寬厚比以及梁截面形狀等因素共建立了18種模型進行計算分析;針對加勁肋對耗能梁的作用建立了4種模型,並結合已有的闡述了加勁肋對耗能梁的影響。
  3. In the process of work, according to complex geological conditions such as huge thick soft clay in site and top surface of possible pile foundation supporting course fluctuating in large amplitude, we adopted many advanced exploratory methods ( just as high accuracy exploration of shallow earthquake, crosshole wave velocity test, vane shear test, pressuremeter test, etc. ), we found out that there is an ancient groove of yangzi river in former plant site, therefore we suggested in time that plant site should properly be moved eastwardly, only this item saved nearly about 50 million for pile foundation project cost

    在工作過程,根據廠址區軟粘土厚大、可能作為樁基持力層頂面起伏變化大等復雜地質條件,採取了多種先進的勘探手(如高精淺層地震勘探、跨孔波速、十字板剪切、旁壓等) ,查明了原廠址區存在一個江古凹槽,並及時建議廠址適當東移,僅次一項就節省樁基工程費用近5000萬元。
  4. By making some assumptions, collision frequency were presented. then the the flocculation kinetics model was established through population balance equation. comparison of experimental data and modeling results indicate that there are the same trend between the two. so the model can predict floes number and size during flocculation of yellow river ' s loess particles without using empirical parameters. the tem and sem were used to obsever floes in the study of floe structure. the flocculation was divided as flocculi, floc and floe aggregate. the floes structure model was established by assumption that particles position in floe accords with tetrahedron. the fractal dimension of model and experimental floes was found to be coincidentso the model can reflect the structure of flocs formed in flocculation of yellow river ' s loess particles by macromolecule flocculant at a certain extent

    最後,本文還對絮凝動力學和絮體結構進行了研究,在前人研究的基礎上,針對高分子絮凝黃河泥沙,對絮凝過程作了一些符合條件的假設,建立了顆粒碰撞頻率表達式,應用了顆粒數量平衡方程,從而建立了絮凝過程的動力學生模型,模型計算結果與數據對比表明,二者趨勢一致,在沒有使用經參數的情況下基本上能夠描述黃河泥沙絮凝過程中絮體數量和尺寸分佈的變化過程;對絮體結構的研究中,應用掃描電子顯微鏡和透射電子顯微鏡對絮體進行了觀察,將絮體分為絮粒、絮團和絮網三個不同的生,通過假設顆粒結合位置符西安建築科技大學博士學位論文合正四面體,建立了絮體結構模型,計算得到的模型絮體分形維數基本與中的實際絮體相符,在一定程上能夠反映高分子絮凝黃河泥沙生成的絮體結構。
  5. Abstract : experiments were made on a ultrasonic machining tool with work - piece adhered to ultrasonic transducer head, to machine micro - holes on hard and brittle materials such as soda glass and si, to study the effects of tool materials , work - piece materials , amplitude , machining load , slurry concentration , tool length and the size of work - piece on machining rate and wear ratio. in this experiment, the micro - tool was made through wedg

    文摘:通過以wedg放電加工手製作微細超聲加工用工具,在採用工件加振方式的微細超聲加工機上對碳酸玻璃、半導體硅等硬脆材料件進行微孔加工的實,來探討在某一特定加工條件下工具材料、工件材料、工件的振幅、加工靜載荷、磨料懸浮液濃、工具及工件尺寸等重要因素對加工速、工具損耗率的影響,為微細超聲加工技術的實用化提供參考依據。
  6. In this thesis, four types of steel beam - rectangular cfst column connections, including normal welded flange plate ( wfp ) connection, bolted flange plate ( bfp ) connection, stiffened end plate ( sep ) connection and double split - tee plate ( dst ) connection, were designed based on the configuration of steel frame connection. total 8 models, 2 models of each kind of connections were tested under low - reversed cyclic loading at the end of cfst columns. the relationships between force and displacement at the end of columns, the relationships between the moment and rotation of the joints, degradations of strength and stiffness, ductility, failure mechanism and failure characteristics of these four connections under different axial - compression ratios were presented

    本文借鑒鋼框架節點構造,設計了四種類型矩形鋼管混凝土柱與鋼梁連接節點,包括常規栓焊( wfp )節點、翼緣全螺栓連接( bfp )節點、雙t板連接( dst )節點以及加勁端板連接( sep )節點,進行了四類節點8個模型件在柱端低周反復荷載作用下的抗震性能研究,比較了不同軸壓比下節點的滯回性能、強與剛退化、延性、破壞機理與破壞特徵,主要結論有: 1 、節點的位移滯回曲線與轉角滯回曲線為塊型分佈,沒有或略有捏攏現象,耗能能力強; 2 、軸壓比對節點滯回曲線有顯著影響,全部節點都有顯著的剛退化; 3 、位移與轉角骨架曲線在峰值荷載後有較的水平或下降,具有良好的延性性能; 4 、從整體抗震性能上看,翼緣全螺栓連接節點、雙t板連接與加勁端板連接節點都優于常規栓焊節點,可在實際工程中加以推廣。
  7. Test results indicated : with the hoist of altitude, the increase of ice amount and the rise of pollutant, the average flashover voltage reduced. the character exponent generally depends on the insulator profile, ice amount, ice state and pollution severity etc. by means of a high - speed camera, a data acquisition system and high voltage test facilities, a series of the flashover processes on ice surfaces were record. the experimental results form this study and the subsequent theoretical analyses suggested : the thermal ionization of the air in front of an arc root resulted in arc movement ; the electrostatic force had an auxiliary effect of impelling arc propagation ; the electrical

    通過對攝像機、數據採集系統及高壓裝置記錄覆冰絕緣子表面閃絡電弧的發展過程的結果進行理論分析得出:弧根周圍空氣的熱電離導致了電弧的發展,靜電場力對電弧的發展起到了加速作用,電擊穿僅發生在閃絡最終的跳躍階;通過測量閃絡過程中的放電電壓、泄漏電流、閃絡時間、覆冰水電導率、電弧及電弧半徑等參數,得到了不同階電弧(電弧起弧階、電弧發展階及完全閃絡)的發展速、臨界電弧均隨覆冰水電導率的增加而減小。
  8. It shows that the method suggested in the paper is simple, applicable for engineering and has good precision. on the bases of the formulas deduced, and combining with relative test datas, it studies in the paper several factors influencing the bearing performance of the simple beams, such as shape of the external tendons, the equal moment segment length, span - to - depth ratio of the beam, valid initial prestress of the external tendons, area of the internal tension reinforcement, strength of the concrete, vertical distance between

    在公式推導的基礎上,結合相關資料,研究了體外筋的形狀、等彎矩區、梁跨高比、有效張拉預應力、體內受拉筋配筋率、混凝土強、錨固點到樑上邊緣在垂直方向上的距離、體外預應力筋水平(雙折線型體外筋的情況)以及荷載類型等對體外預應力混凝土簡支梁受力性能的影響。
  9. On - site tests are taken as the main research way in this paper, in which total three trail anchors are installed, each consisted of two units with 4m fixed lengths

    本文以現場為主要研究手錨索數量為三根,由兩級單元組成,單元錨固為4m 。
  10. In the simulation of close water test, varied profiles of velocity of flow are obtained at different leakage location along the detected pipe, the variety values of the water level in the check well are acquired with time, consequently the location of the leakage can be judged

    在閉水時,通過模擬沿管道方向上不同滲水點的流速的變化,以及得出窨井出口處的水位隨時間的變化值,來判斷管中最有可能出現滲漏點的位置。
  11. In boundary treatment, the model turns into generally adds coarseness boundary made of specially complex many coarseness body in the physical model experiment as the coarseness body highly and discharges the density to add the coarseness spot as the main characteristic whole, both to avoid the location within the body of this complex mathematical simulation problems, and could realize this model after to simulate the apron that adds the coarseness namely adds the coarseness section downriver speed of flow to the downriver current of water base speed of flow influence in to hang upward

    該模型在邊界處理時,將物理模型中由特別復雜的多個加糙體組成的加糙邊界概化成以糙體高為主要特徵的整個加糙部位,既避開了對加糙體內部進行極其復雜數學模擬的這一難題,又能實現模擬海漫加糙下游水流流速在垂向上的分佈變化這一主要目的。在獲得基本的入流流速分佈、初始水位及加糙體的絕對高和加糙的情況下,能迅速模擬出加糙下游各個斷面在垂向上的流速分佈情況。
  12. Available empirical results indicate that the creep of reinforcement strongly influences the overall behavior of rs structures, which is demonstrated by excessive deformations. different creep tests are discussed and the test methods to obtain the two kinds of creep curves are compared in this thesis. the methods of how to determine the reduction factor according to long - term strength of creep or allowable strain during the services life are presented

    文中介紹和研究了不同的蠕變,比較了獲得兩種蠕變曲線的方法,並給出了兩種蠕變曲線一定范圍外推的數據處理方法;給出怎樣根據設計使用年限的期蠕變強或容許應變來確定蠕變折減系數的方法,並用計算實例來說明。
  13. Based on the foundation " liquefaction test study on the rapid railroad bed " supported by the railway department, some works on the liquefaction of silty soils have been carried out. in this dissertation, after making a short review of the works on seismically induced soil liquefaction, some research results are presented, which include the following contents. ( 1 ) depending on the dynamic triaxial test, the liquefaction strength of the silty soils is studied and two new models are proposed to evaluate the pore water pressure and the strain of the saturated silty soils during earthquake

    結合鐵道部發展基金項目: 「高速鐵道液化土地基研究」 ,本論文概括總結了地震液化的研究現狀,就滬蓉高速鐵路徐州可液化場地粉土地基的液化特性問題開展了一些研究工作,內容如下: ( 1 )提出了基於實用目的的粉土的孔隙水壓力增模式和永久應變勢計算模型,並把此兩模型應用於場地的地震反應分析和地震液化性能的評價中;依靠循環振動三軸技術,對粉土地基的地震液化強進行了研究;證了密實是粉土液化的重要影響因素。
  14. Abstract : the climatic factors in different growth stages of late - seeded and filmed winter wheat were discussed with the application of the field test data. the agricultural climate cause of late - seeded and filmed winter wheat with high yield and water - saving was analysed. the species of late - seeded and filmed winter wheat corresponding to multi - cropping cotton was selected

    文摘:根據田間資料,討論了晚播膜下條播冬麥各生發育時氣候條件的適宜程,並分析了晚播地膜冬麥高產節水的農業氣候原因,在此基礎上確定了與復播棉花相配套的晚播地膜冬麥的品種選擇。
  15. The comparative drying tests were carried out on natural drying condition, using the submerged vegetation ( potamogeton pectinatics in wuliangsuhai lake ) processed by different means as the test materials, obtaining the relationship among the processing methods of expelling water, spraying potash as well as cutting into pieces and drying velocity

    本研究以烏梁素海生的沉水植物(龍須眼子菜)為材料,在自然乾燥情況下,採用不同處理方式進行乾燥對比,獲得了擠水、噴灑碳酸鉀、切等處理方法對水草乾燥速的影響關系。
  16. Abstract : this paper introduces bridge section model tests in the wind tunnel. it presents static forces on bridge section models. the effects of bridge fences, isolation belts and different model lengths on static forces are studied. the static and dynamic stabilities of bridge are analyzed. the results show the effect of bridge fence, isolation belts and different model lengths on static forces should be considered in wind load design

    文摘:通過橋梁節模型風洞測量了橋梁的風力,研究了橋面護欄和隔離帶以及變模型對模型風力的影響,並分析了橋的馳振穩定性和顫振穩定性.結果表明:設計方案以及應用結果時應考慮模型、橋面護欄及隔離帶的影響
  17. It was shown that salt expansion value of low liquid - limit clay was accumulated before the sixth freezing and thawing cycles, but the increment of salt expansion was reduced gradually with increasing cycles ; the salt expansion accumulation of low liquid - limit clay could be separated into three phases ; the deformation of clayey sand was mostly frost heave and subsidence under cycles, and collapsibility value of clayey sand was accumulated with increasing cycles ; the variation of salt expansion ratio and collapsibility ratio was a parabolic function of freezing and thawing cycles

    結果表明:低液限粘土前五次凍融循環過程中鹽脹具有較好累加性,隨著凍融循環次數的增加,鹽脹量增逐漸降低;含砂低液限粘土的鹽脹過程可以被分為三個階;粘土質砂在凍融循環過程中的變形主要為凍脹和沉降變形,具有較好的溶陷累加性;低液限粘土、含砂低液限粘土的鹽脹率和粘土質砂的溶陷率與凍融周期之間的關系符合二次拋物線變化規律。
  18. These are main problems of eutrophication. at first we select algae which grow under different level of nutrition ( or different development phase in the process of eutrophication ), domesticate, selecte seed, and culture algae at the lab, and then we obtain dependence of each algae on nutrition and understand information of eco - breadth of nutrition of supplied alga through pure culture under different concentration of nutrition. we find out resource utilization, competition between interspecies and confirm the quantity - effec t relationship between succession of species and nutrition through mixed culture

    本文首先選取在不同營養環境下(或富營養化過程的不同發展階)生的藻類物種,在實室內進行馴化、選種與純化培養;然後通過不同營養水平的純藻培養實,獲取不同藻種生過程對營養物質的依賴行為,從而可以了解每一供藻種的營養物生態幅信息;再通過對應培養濃的混合培養,以期揭示生物種群間的資源利用與競爭行為,並可進一步確定生物種群的演替與環境營養物之間的量效關系。
  19. These studies have shown significant results : to protect wollastonite ' s crystal structure, we can forge and then cool it before fining ; adopting mechanochemical modification by jet mill, we can make wollasonite to fine and modification at the same time ; in order to understand thoroughly the major results achieved in enhancement of mechanical capabilities of the polypropyl ene filled with the modified wollastonite, this paper has researched deeply the interface mechanism through combining experiments and measure means with theory analysis, and tried to give a further explanation and demonstration about improving of the macroscopic mechanics performances of composite material and to offer a theoretical basis for improving material ' s mechanical properties

    特別是採用粉碎前對硅灰石煅燒空冷處理的方式,獲得了超細化程更高、徑比更大的硅灰石;利用機械力化學改性及超音速氣流粉碎技術,使硅灰石粉碎?改性同時完成;應用現代測,結合實對界面微觀形貌、結構及其機理進行研究,進一步解釋與論證了復合材料的宏觀力學性能,為改善復合材料的綜合性能提供了理論基礎。這些方面的研究在同類研究中具有一定的創新性。
  20. 2 where filling takes place over extended periods, i. e. longer than 24 hours, the process simulation test should extend over the whole of the standard filling period

    2如果灌裝延續一時間,如:超過24小時,則模擬應該延至整個標準灌裝時間的
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