載重比 的英文怎麼說

中文拼音 [zǎizhòng]
載重比 英文
bearing ratio
  • : 載Ⅰ名詞(年) year : 一年半載 six to twelve months; six months to a year; 三年五載 three to five ...
  • : 重Ⅰ名詞(重量; 分量) weight Ⅱ動詞(重視) lay [place put] stress on; place value upon; attach im...
  • : Ⅰ動詞1 (比較; 較量高下、 長短、距離、好壞等) compare; compete; contrast; match; emulate 2 (比...
  • 載重 : load; carrying capacity
  1. The total rna was isolated from pokeweed ( phytolacca americana ) leaves using the method of guanidine isothiocyante and used as template to amplify the total length and deleted mutant pokeweed antiviral protein ( pap ) gene by rt - pcr and then the pap gene was cloned into pgem - t vector. the sequencing results showed that pap gene had 99. 9 % identity comparing with the pap gene nucleotide sequence reported by lin et al ( 1991 ). the iptg - inducible expression vector containing the pap gene was constructed and transferred into e. coli bl21 ( de3 ) - plyss

    將缺失型pap基因克隆到植物表達體pbi121中,通過液氮冷凍法將組質粒轉入農桿菌lba4404細胞中,然後採用葉盤法,在該農桿菌的介導下將pap基因導入普通煙草中,經過卡那黴素抗性篩選,最後獲得了轉pap基因的工程煙草植株,摩擦接種煙草花葉病毒( tmv ) ,與非轉基因煙草相,能夠推遲癥狀表現達2月之久,說明pap基因能夠在其它植物體內產生有活性的高抗病毒的蛋白質。
  2. ; 1. the trend of the development of burden and light hanging basket in the cantalever construction of continuous rigid frame bridge has been prospected, the roof truss and cable - state composite hanging basket also has been designed by analyzing and comparing with other ones. 2

    對大跨度橋梁懸臂澆築施工的各種形式掛籃施工工藝進行了較和總結,對連續剛構橋懸臂澆築掛籃施工中輕型的發展趨勢進行了展望,提出了一種用於解決輕型懸臂澆築施工的新型桁架斜拉式組合掛籃,並進行了可行性分析計算和設計。
  3. Compared with traditional mechanical and optic gyros, hrg has such advantages as no high speed circumvolving or moving parts in structure, no warm - up time and short start - up time, wide signal band in frequency, low excursion noises, great endurance in over loading, nuclear radiation and short time power off, small bulk, light weight, low power cost and long life, which is suitable for space applications

    與傳統的機械陀螺和光學陀螺相,半球諧振陀螺具有如下優勢:結構上無高速轉子、無活動部件;不需預熱,啟動時間短;信號頻帶寬,漂移噪聲低;能承受大的機動過;抗核輻射,並可經受短時間電源中斷的影響;體積小,量輕,功耗低,壽命長,非常適合空間應用。
  4. With the ground effect, they own higher lift / drag ratio than general aircraft, so need less thrust power and have the ability to carry more loads or fly longer

    在地效的作用下,它的升阻一般的飛機大,因而飛行時所消耗的推進功率小,具有更大的量或航程。
  5. The physicochemical properties of cx - 2 correspond to cytodex - 3 mc produced by pharmacia, including of color, loss of drying, area, density, size, soakage, dilation, stability, size distribution, mechanical strength, surface structure, etc., but its cost of manufacture is lower than cytodex - 3 " s

    通過優化工藝制備的cx - 2微體,在色澤、乾燥失表面積、成球率、密度、直徑、吸水量、溶脹度、粒度分佈、表面結構、機械強度、穩定性等理化指標與pharmacia公司cytodex - 3微體相當,但成本價格要低得多。
  6. But when heavyly loaded, the former is far better than the latter. the wear resistance of za27 alloyed with mn is no obviously better than that of common za27 alloy. under the sliding friction conditions, the wear resistance at high temperature of za27 is improved by alloyed si and reaches the highest level when the content of si is 1 - 3wt. %

    裂紋主要始於脆性相si相和mn相,裂紋沿晶界擴展;在滑動摩擦條件下(常溫) ,含si的za27合金在較小時,耐磨性與普通za合金相沒有明顯提高,但在荷較大的情況下,其耐磨性遠高於普通za27合金材料;加mn的za27合金與常規za27合金相,耐磨性沒有明顯提高;在滑動摩擦條件下, si的加入提高了za27合金的高溫摩擦性能。
  7. Its hysteretic curve is plumper, its ductility coefficient and energy dissipation capacity have been improved remarkably. the inclined staff of the steel bar truss has a restraining faction to the development of the crack, and the phenomena is that there has more crak and larger distributing area on the shear wall, which is an important token of the improved seismic capacity. concealed steel bar truss has the faction of increasing the height of plastic hinge area, which is another important token of

    研究結果表明:內藏鋼桁架高剪力墻與普通高剪力墻相:屈服荷和極限荷顯著提高;屈服剛度明顯提高;其滯回環相對飽滿,延性系數及耗能能力顯著提高;內藏鋼桁架高剪力墻,其鋼桁架斜桿對裂縫發展有控製作用,現象是墻體上的裂縫較多、分佈域較廣,這是抗震耗能能力增強的要表徵;內藏鋼桁架高剪力墻有增大底部塑性耗能區域的作用,這是抗震耗能能力增強的另一要表徵;內藏鋼桁架還有顯著提高抵抗剪力墻基地剪切滑移能力的作用。
  8. First of all, i summarize the forecast model category and estimate each model in detail, then, i adopt different model to forecast demand, supply, bdi of bulk shipping market. as to demand forecast, i mainly focus on the imitating precision of primitive data, adopt grey forecast model, self - suited filter model separately, and then compose these models as a better one. as to supply forecast, i use econometrics model to describe the complicated relationship of demand, supply, bdi, gnp etc. as to bdi, i try to draw into market integrated factor, describe the relationship of bdi, supply, capacity, speed, rate of oil, navigating capital etc. then finally, i make afterwards evaluation of these models and then analyze future bulk shipping market in detail

    對于需求預測,著考慮對原始數據的擬合精度,經過模型較優選論證,分別採用了灰色一階模型,改進的灰色二階、自適應過濾預測的加權組合模型,得到了相當高的擬合精度;對于供給預測,運用計量經濟模型對供給、需求、運價、 gnp 、進出口貿易額等多變量之間復雜的相互關系進行動態模擬,定量的反映出各變量之間的因果關系;對于運價預測,嘗試引入市場綜合因數概念,化繁為簡,通過描述運價與運力供給、噸、油耗、航速、燃油價格、航行成本等等諸多因素的關系來進行預測。
  9. You need to do is find can take you flying eastern, such as balloons, inflatable dolphins ; can also find a load of eastern, such as bathtubs, basket

    你要做的是尋找能帶你飛行的東東,如氣球充氣海豚還要找個能的東東,如浴缸籃子。
  10. Concrete filled steel tube ( cfst ) arch bridge is a new type of bridge which is widely applied in china recently, and it is a relatively ideal structural form for long span arch bridge. with the background of the practice of liantuo bridge, in the view of point of feasible in technology and reasonable in economy, the key techniques and difficulties in the construction of cfst arch bridge are analyzed and discussed in the thesis. the disadvantages in the current design and construction and the improvement method are also indicated

    本文以蓮沱特大橋工程實踐為背景,以主拱施工研究為主線,對鋼管混凝土拱橋難點施工工藝,從技術上可行、經濟上合理的角度出發,詳細的進行了分析闡述,並指出了設計施工中存在的不足和今後需改進的方向;通過對鋼管混凝土拱橋施工過程中內力的計算,確定了拱肋施工最不利荷工況下加量、壓順序和張拉臨時預應力束等一系列施工措施,並將計算結果與現場監測觀測數據進行了較分析,為今後進一步研究這類結構提供了參考。
  11. The main contents about calculation of cable curve for suspension bridges are as follows : firstly, parabola theory, a traditional calculation theory of linetype for suspension bridge, is introduced. according to behavior of suspension bridge, segmental catenary theory which is an exact calculation theory of cable curve for suspension bridges is then built. after that, the errors and adaptable range of segmental parabola theory, segmental straight - line theory and traditional parabola theory are compared one another

    懸索橋線形計算部分的主要內容如下:首先,介紹了懸索橋的傳統線形計算理論? ?拋物線理論;根據懸索橋的特徵,建立了懸索橋主纜線形計算的精確理論? ?分段懸鏈線理論;並由此較了分段拋物線法、分段直線法及傳統拋物線理論的誤差和適用范圍;分析了索長變化、跨度變化及主纜變形引起的恆分佈對主纜線形的影響。
  12. This paper, in allusion to damage of expansion joint of bridge, introduces a sort of new structure of jointless device - semi - integral abutment jointless bridge, and establishes model of general structure finite element of this bridge, and in details analyses its qualities of stress. the model considers the interaction of superstructure - substructure - soil. resistance of the soil behind abutment adopts still soil pressure and elastic resistance when the temperature rising, but active soil pressure when dropping. analysis of qualities stress of bridge includes of action of dead load, car load, temperature load of season character. taking an 100m length pc semi - integral abutment jointless bridge as instance, the paper establishes the model of plane frame by applying large common software - anasys, and analyses it by elastane and large deformation to imitate character of stress and deformation of general bridge. at the same time corresponding models of finite element of joint bridge and integral abutment bridge are established, and unique stress and performance of structure of semi - integral abutment jointless bridge are researched by comparing and analysing character of three different models under same loading, and controlling factor of design and constitution are generalized. in conclusion, for semi - integral abutment jointless bridge, on one hand shear, moment and deflection of the main beam and axis force of substructure are approximate with that of joint bridge, and integral stifmess of structure is increased and damage of expansion joint is eliminated, on the other hand there is axis force in main beam, shear and moment of substructure are bigger than that of joint bridge. in all this type of jointless bridge has rational stress and is worth of application and popularization

    半整體式橋臺無縫橋梁計算模型考慮了上部結構-下部結構-土的共同作用;臺後土抗力升溫時採用靜止土壓力加彈性土抗力,降溫時採用主動土壓力;分析橋梁受力性能時考慮了結構自、車輛荷和季節性溫變荷的作用。以一座橋長100mpc半整體式橋臺無縫橋梁為實例,採用大型通用軟體ansys建立平面框架模型,進行彈性、大變形分析,模擬全橋受力和變形特點;同時建立與此對應的有伸縮縫橋梁和整體式橋臺無縫橋梁有限元模型,通過三種橋型同步加分析,研究半整體式橋臺無縫橋梁獨特的受力特點和結構性能,總結其設計控制因素和構造要求。通過本文研究知:半整體式橋臺無縫橋梁主梁的剪力、彎矩、撓度和下部結構的軸力與梁式橋相近,結構整體剛度增大,併除去了伸縮縫病害;但主梁增加了軸力,下部結構剪力、彎矩較梁式橋大;綜合分析是一種受力合理有實踐和推廣價值的橋型。
  13. Reaper can fly twice as fast as predator and can carry about ten times the payload, including 500lb precision bombs

    「收割者」的飛行速度「掠奪者」快一倍,而裝能力則是「掠奪者」的十倍,包括能裝達500磅精確的炸彈。
  14. Before i share my results, it s important to understand that my results only highlight general filesystem performance trends under light system loads on a uniprocessor system, and are

    在與您分享該結果之前,理解以下事實很要:該結果只著較了在單處理器系統上,系統負較輕的情況下,常規文件系統的性能趨勢,它並
  15. The controller adopts three - digit alphanumeric pipe for displaying the percentage between the actual loads and rated load value, and elevator rated load tonnage, which is convenient for users operation

    控制儀採用3位數碼管顯示:用於顯示實際量與電梯荷值的百分,顯示電梯額設定噸位,方便用戶操作
  16. This paper discusses the performance of load bearing under different boundary conditions by model test and finite element analysis. the x - side binding of the supporting surface connecting with up - side chord member of slice arch is the most important factor that affects membrane effect of the slab. the load bearig capacity of the slab with fixed end increased forty percent of the capacity of the simple - supported slab, because membrane effect of the slab with fixed end is remarkable

    本文通過模型試驗和有限元分析,較深入地探討了在不同邊界條件下微彎板的受力性能,結果發現與拱片上弦桿連接的支承面有側向約束條件是影響微彎板的薄膜效應最要的因素,當該支承面為固結狀態時,薄膜效應十分顯著,其承簡支約束微彎板的承力提高了約40 。
  17. This dissertation focuses on the carrier recovery in high dynamic navigation receiver, the effect of iq mismatch in direct down conversion receiver and the signal to noise ratio estimator in navigation receiver

    本文以二代衛星導航定位系統為應用背景,著研究了接收機中的波恢復技術、 iq非正交對偽碼和波影響的模型、估計技術。
  18. In order to monitor the satellite, carrier to noise ratio estimator is needed in receiver. the widely used carrier to noise ratio estimator is sensitive to residual doppler frequency. we present a new estimator whose property is somewhat better than the widely used one

    以上的研究均以實際應用需求為出發點,充分考慮了實際實現中的可能會遇到的問題,其中估計及波跟蹤技術已成功地應用到某國防點型號的接收機中。
  19. Over the past several years, the modeling and control of flexible space robots have attracted much serious attention. compared with the conventional rigid robots, flexible robots have the potential advantages of lower energy consumption, large work volume and greater payload - to - manipulator weight radio

    近年來,空間柔性機器人的建模和控制受到了廣泛的研究,與傳統的剛性機器人相,柔性機器人具有耗能小、操作空間大、負等特點。
  20. Second, on the base of large scale integer building model tests, anti - seismic property of structure of multi - rib panel is analyzed, and is contrasted with the property of the masonry structure. the research reveals that buildings in structure of multi - rib panel make shear deformation mainly, whose failure process is similar to the single composite panel and the tests result shows that, contracted to masonry structure, carrying capacity of buildings in this structure is 1. 5 times and deformation capacity is about 3 times. in addition, thanks to the lower self - weight, the seismic response of the buildings is far lower than masonry structure

    研究表明:多層密肋壁板結構房屋以剪切變形為主,破壞過程與單塊墻板相似;復合墻板與后澆隱型框架連接成整體結構,協同工作;傳統的底部剪力法適用於本結構體系的抗震計算;試驗結果還表明,該結構房屋最大承能力是磚混結構的1 . 5倍,變形能力是磚混結構的3倍左右,而房屋自砌體結構減少1 4以上,地震反應遠低於砌體結構。
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