重大試驗 的英文怎麼說

中文拼音 [zhòngshìyàn]
重大試驗 英文
significance test
  • : 重Ⅰ名詞(重量; 分量) weight Ⅱ動詞(重視) lay [place put] stress on; place value upon; attach im...
  • : 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
  • 重大 : great; weighty; major; significant; important; grave; serious
  • 試驗 : trial; experiment; test
  1. Through preparative experiments and optimized experiments on cu ~ zn ultrafine powders that are prepared by the method of thermal spray and ball milling, the author finds that dispersants concentration, dispersing time, ph, temperature and adscititious ions have significant influences on dispersing effects

    西安理工學碩士學位論文通過對熱噴塗球磨法制備的超細銅鋅粉的分散性進行預和優化,發現分散劑濃度、分散時間、 ph值、溫度和外加離子濃度對分散作用效果有要影響。
  2. Now qinghaosu and some of it ' s derivatives are being used around the world as effective new antimalarial drugs in the fight against falciparum malaria, including multi - drug - resistant plasmodium falciparum. in addition, recent studies also indicate that some qinghaosu derivatives have other bioactivities, including antiparasitic and anticancer activities

    國內外量理化、藥理研究和臨床應用表明青蒿素是抗瘧的有效成分,認為青蒿素的發現是抗瘧史上的突破,最近,美國和歐洲的一些實室研究表明青蒿素還具有抗癌的活性。
  3. Because of the technical complexity of the turbine for the three gorges project and on the basis of several important technical problems which have been defined in the international bidding documents for 14 generating units in the left bank power station, the owner of the project has decided another some important technical problems based on appraisal and comparison in the bid appraisal stage after the bidding documents are analyzed and the tender documents are cleared by the tenderers

    由於三峽工程水輪機技術上的復雜性和挑戰性,在左岸電站14臺機組國際招標文件已明確了若干技術問題的基礎上,在機組議評標階段,對招標文件進行分析和投標商對投標文件進行澄清說明后,經評議比選,業主又決策了幾個技術問題,主要有:水輪機設計水頭的確定,負傾角葉片水輪機的應用,兩套水力設計,舍棄初期轉輪,蝸殼進行水壓等。
  4. Identification and anti - biotic sensitivity of e. coli from ducklings of some duck farms in chongqing municipality

    慶養鴨場雛鴨腸桿菌分離鑒定及藥敏
  5. In the course of working, , the plow will make use of the shuttling method so that it can dig alternately either on the left or on the right. compared to the unilateral plow, it can improve the productivity because it can help leave off the soil 、 take from the consumed energy and reduce the empty journey. to meet the requests above, we will use a remote cylinder with both a small cubage and double functions, approximately designing the plow to be columniform and symmetric. after the experiment for a period in the field, we found that the most frayed areas had happened at the places of both plow shank and share and at the same time the base of the remote cylinder had ruptured suddenly

    與單向犁相比,其優點在於:耕地無開、閉壟,地表平整,降低了耕后整地的能量消耗,減少了地頭的空行程,因而提高班次生產率。為了滿足犁體梭式作業的要求,我們採用了一隻小容積雙作用的液壓油缸;同時對犁壁曲面的形狀採用了近似圓柱形的對稱設計。但經過一段時間的田間,我們發現:該犁犁胸部分的犁脛和犁鏵上的犁尖在工作中磨損較為嚴;主犁梁和油缸缸體的連接部分(即油缸底座)突然發生了斷裂,造成整個犁體無法正常工作。
  6. Two spider silk protein genes ( avfl and avf2 ) screened from the library are characterized in a lot of repetitive motifs, a high guanosines or cytidines content, a strong preference for adenosine or thymidine in the third position of a codon and rich residues of glycines or alanines in the proteins translated

    結果,該文庫容量為4 . 9 10 ~ 6 。從文庫中篩選到avf1和avf2蛛絲蛋白新基因,具有典型復序列多, g c含量高,密碼子第三個堿基偏愛使用a t及編碼蛋白中含有量gly和ala殘基等特點。
  7. Those research results will be applied on some important civil engineering such as china national high level radioactive waste deposal, energy storage project, the deep exploitation of petroleum and gas, and the construction of the exceed deep and exceed long tunnel of “ south to north of water ” project

    開展型材料模擬技術、節理巖體三場耦合理論和關鍵技術的研究,為國家高放廢物處置、能源戰略儲存、石油深層開采、南水北調西線超深超長隧道營建等工程服務。
  8. The rat arteriovenous shunt thrombosis test showed that both congsheng capsules and hydergine could obviously decrease both wet weight and dry weight of thrombus

    通過鼠動靜脈旁路血栓形成,表明聰聖膠囊和喜得鎮均可明顯降低血栓濕和干
  9. Through the experimental research, we think : the technological capacity of fiberglass asphalt macadam if weaker than asphalt macadam, however, if use elasticized capacity to solve blending technological problem. adjust the breed of fiber silk, extend its diameter, its paving capacity is still worth exploring, asphalt - rubber macadam structure lager have good deformed - become capacity and crazed - resistance capacity, small gap rate. good water - resistance capacity, good hot - stability and simple construction technology. therefore. pitch rubber spall is a good cover material which is suitable for the second class or lower whose asphalt pavement has split open because of fatigue. and is the good structural measure of preventing half - rigidity grass - roots unit shrink - rift reflecting. pave a thin layer of pitch rubber spall between asphalt - type pavement layer and half - rigidity basic level, although the cost of building is higher than paving togongbu in the middle, the construction technology, crazing - resistance and water - resistance are better than togongbu, not only could reduce greatly the reflex of half - rigidity grass - roots unit material, long then the use lifespan of pavement, but also it is possible to reduce suitably the thickness of asphalt mixture layer, though the cast of building in the early days becomes more, in the long - term opinion, it have fully important technological and economical significance

    通過研究認為:玻璃纖維瀝青碎石的技術性能不如瀝青碎石好,但路用彈性性能較好,如能解決拌和工藝問題,調整纖維絲的品種,增其直徑,其路用性能仍值得探討,瀝青橡膠碎石結構層具有變形性能和抗裂性能良好,空隙率小,防水性能好,熱穩定性較好,施工工藝簡單的特點,因此,瀝青橡膠碎石是二級及二級以下公路因疲勞而開裂的瀝青路面的良好罩面材料,也是防止半剛性基層收縮裂縫反射的良好結構措施,在瀝青類路面面層和半剛性基層之間夾鋪瀝青橡膠碎石薄層,雖然造價比夾鋪土工布高,但其施工工藝,抗裂性能和防水性能均優于土工布,不僅可以減少半剛性基層材料的反射裂縫,延長路面使用壽命,而且可能適當減薄瀝青混合料面層的厚度,雖然初期造價有所增加,從長遠來看,具有十分要的技術和經濟意義。
  10. The requirement for a good test fixture is maximum stiffness for the lightest possible weight.

    一臺好的固緊裝置應該是量輕而剛度
  11. In adding - acid system : the resistivities of different lithotypes " cp tend towards being constant and equal when weight percentage of aniline exceeds 50 % ; because of the structure difference of different lithotypes, the polymerizing places and processes are different ; the resistivities of vituain / pan and fusain / pan reach the lowest point respectively when ( ntloisiog / an is 0. 6, 1. 0 ; the resistivities of cp decline fast and tend towards being constant along with the reduction of diameter of coal. in not adding - acid system : the resistivities of different lithotypes ' cp decline evenly ; it is found on the crossed experiment of cp, that ( nflsaog / an mole proportion is the most important factor to influence output ratio of cp and the weight percentage of aniline is the most important factor to influence resistivities of cp. according to the result of the crossed experiment of cp

    在有外加酸體系中:苯胺百分含量於50時,不同煤巖組分的電阻率趨于恆定和一致;由於不同煤巖組分結構上的差異,導致苯胺聚合場所和聚合過程的不同;當過硫酸銨/苯胺摩爾比為0 . 6 , 1 . 0時,鏡煤-聚苯胺導電材料電阻率和絲炭-聚苯胺導電材料的電阻率分別達到最低值;在無外加酸體系中:不同煤巖組分/聚苯胺導電材料的電阻率隨著聚合時間的增加而均勻下降,並在8小時左右達到恆定;在對絲炭-聚苯胺導電材料進行的正交中發現:過硫酸銨/苯胺摩爾比對產率的影響最,苯胺量百分比對產率影響最小,而對產物電阻率影響最的是苯胺量百分比。
  12. Unmanned air vehicle ( uav ) plays a very important role in nowadays research. recently, the applied range of the uav has expended into military, civil and scientific research scopes : in military scopes, it can be used to be detectors and monitors, electronic countermeasure, fire guidance, war evaluation, target simulation etc ; in civil scopes, it can be used to geodetic survey, detect urban environment, survey globosity resource, prevent forest - fire, pretend environment and succor disaster etc ; in scientific research scopes, it can be used to survey and research atmosphere, also it can validate new technology and now facility

    隨著時代的發展,無人機在社會的各個領域起著越來越要的作用,近年來,無人機的使用范圍已拓展至軍事、民用和科研三領域:在軍事上,可用於偵察監視、電子對抗、火力制導、戰果評估、目標模擬等;在民用上,可用於地測量、地球資源勘測和森林防火、環境保護與災害救援等;在科研上,可用於氣研究、氣象觀測、新技術新設備的證等。
  13. Regarding the serious smoke ejection of 75 diesel engine series, this paper points out that this problem could be solved by modifying certain parameters and employing gyrating regression design. the actual experiment on 375 diesel engine series shows that, after innovation, the maximum of smoke ejection of gyrating moment falls by 24. 2 percent, and then the rating is demarcated, the smoke ejection falls by 53. 8 percent

    本文針對75系列柴油機排煙嚴的問題,通過改變噴油嘴及相關調整參數,利用多因素正交旋轉回歸設計安排,取得了較好效果.在375型柴油機上的實結果表明:進行優化匹配調整后,最扭矩點煙度下降24 . 2 ,標定工況時煙度下降53 . 8
  14. So as the enter point of the stream, the income of the reservoir, the time of the flood peak lasted, the quantity of sandiness income and the strobe of the darn. we must do some work to forecast and watch the different density stream. by experiments, we made out that it is impo rtant for us to reduce the water lever in work of the river belongs lots of sandiness

    從異看,在正常運用下,水庫產生泥沙異流的機率較,能否運動到壩前排出庫外,還要看異流潛入點位置、入庫流量、洪峰歷時、入庫含沙量、水庫閘門運用等因素,需要做好異流預報監測工作。
  15. The analysis of the repeated test data shows the maximum deviation of air drag coefficient is less than 0. 88 % and the deviation of the most surface pressure data is within 1 %, it illustrates the test data is reliable

    的數據分析表明,空氣阻力系數數據的最偏差小於0 . 88 ,絕部分測壓數據的偏差均在1以內,這說明客車模型風洞數據的精度較高。
  16. The result of thermogravimetric analysis ( tg ) shows that its thermo - decomposing temperature rises obviously

    表明含稀土復合彈性材料的熱分解溫度幅度上升。
  17. Combining the character of heiyingshan ' s lean iron ore and the experiences of hematite dressing home and abroad and locale character that located in the center of gobi desert and lacking electricity and fresh water, we have finished three ways of trial studying which are the magnetic ore dressing, lump dry - magnetic dressing and magnetic - gravity ore dressing

    根據黑鷹山礦貧鐵礦石性質和國內外紅鐵礦選礦實踐,結合黑鷹山礦現場地處戈壁沙漠、缺電少水特點,選擇全磁選方案、塊礦干選-磁選方案及磁選-選方案進行選礦研究,針對選礦情況對中磁?強磁(一粗一精)選礦流程進行了擴
  18. Potassium lost by runoff was equal to that lost by bed load in fallow farming system, but in the systems with more sediment such as traditional farming system, grass stripe, and contour ditch potassium loss was mainly through bed load which accounte

    08 ,泥砂流失量和有機碳流失量佔全年流失量的90以上。徑流量和泥沙流失量的小順序均為無保護性措施、侵蝕嚴區5 ( ck :對
  19. The yeast strain 12y - 5 was identified at the species level using two yeast taxonomy systems published by. j. w. kreger - van rij ( 1984 ) [ 24 ] and j. a. barnett ( 1983 ). [ 19 ] in addition, the ability to assimilate several compounds as main sources of carbon and nitrogen was evaluated at the 500ml shake - flask and 3. 7l kfl bioreactor scales. effects of ph, temperature, concentration of dissolved oxygen and utilizable sugar on the growth rate of cells and the rate of the conversion of substrate into biomass were studied

    進而用正交法對該酵母生長的培養基配方及影響生長的要理化因素進行了較為深入的研究,在此基礎上對影響生長的要理化因素進行了寬范圍的測:並以搖瓶最佳的培養條件為基礎,在3 . 7升kfl -生物反應器上進行了放
  20. Firstly, we estimate the variance and the mean of each cell with maximum likelihood ; secondly, we identify the important dispersion effects based on least squares analysis of the logarithm of within - replication variance ; last, we identify the important location effects based on weighted least squares analysis of the mean of each cell. a simulation study also demonstrates its superiority over some existing methods. an experiment for the robust design of thermostat is used to illustrate the method

    本文對帶有右截尾數據的有復因子,提出了另一種分析位置效應和散度效應的方法:首先,在每一個點,對觀察值用極似然法估計出均值和方差;其次,用每個點方差估計值的對數作為響應變量與各因子建立回歸模型,鑒別出顯著的散度效應;之後,採用加權最小二乘法鑒別出比較顯著的位置效應。
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