降落率 的英文怎麼說

中文拼音 [jiànglàlǜ]
降落率 英文
rate of fall
  • 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
  • 落 : 落名詞[方言] （北方對蓮花落的俗稱） a kind of folk song
  • 率 : 率名詞（比值） rate; ratio; proportion
  • 降落 : 1 （落下; 下降; 低落） descend; fall alight; drop down; build down; tumble; lapse; descension2 （...
  1. At present, the competition of oil industry is very fury, so reducing the cost of exploitation of oil is imperative under the situation. but the oil drillers of our country are relatively old, and the control mode drops behind, which result in the long period of making hole and high ratio of aiguille attaint, which is the main restrict factor of reducing the cost of oil exploitation

    隨著石油行業競爭的日趨激烈，降低石油的開采成本就勢在必行，於是研製新型的石油鉆機就顯得尤為重要，因為國內目前使用的鉆機比較陳舊，控制方式非常落後，導致鉆井周期長、鉆頭損壞率高，這是降低石油開采成本的重要制約因素；而且落後的控制方式使得鉆井過程容易發生溜鉆、卡鉆等事故。
  2. The housing market ' s downswing may not yet be over ; and its weakness could prompt consumers to increase their ultra - low saving rates, cutting into demand

    房屋市場的衰落趨勢或許尚未結束，而且其疲軟狀態會促使消費者提高原本處在極低水平的儲蓄率，這會降低需求。
  3. The killing effect on oncomelania hupensis by lixivium of pterocarya stenoptera, nerium indicum, rumex japonicus and their mixture was studied. differences of the snails mortality were studied also. the three kinds of plant material could kill the snail effectively both in spring and in autumn. but the mortality was different when the experiment is done in different seasons or with different lixivium. the effect in spring was better than that in autumn. n. indicum was the most effective among the three kinds. the effect by mixture was better than that by unitary material, and the effect by the mixture of the three kinds was better than that by two kinds. the variance analyses showed that the experiment could be modified, and some ingredients concentration in mixed lixivium could be reduced. the experiment was valuable in enhancing the power of killing the snail and saving plant material

    對楓楊、夾竹桃和土大黃以及它們的組合水浸液的滅螺效果作了比較研究，結果表明: （ 1 ）滅螺效果均隨水浸液濃度的增高而增強; （ 2 ）這3種植物材料及其組合水浸液的滅螺效果都是春季比秋季好; （ 3 ）組合水浸液的滅螺效果比單一植物材料水浸液的滅螺效果好; （ 4 ）方差分析的結果說明植物材料組合水浸液滅螺在保證滅螺效果的前提下，還可以適當降低組合水浸液中的濃度.以上結論對提高植物材料的滅螺效率和節省植物材料的使用量有著重要的意義，同時也為組建植物滅螺群落提供了有益的參考
  4. The dispartment of the reform of the state - owned enterprises causes many structural problems : it makes the government not treat all kinds of enterprise impartially and play the role of public management ; it undermines the efficiency in the management of the state - owned properties because the government sets overfull targets for the enterprises ; it causes the agent of enterprises cannot be put into effect and the government takes on unlimited duty

    我國政企不分造成的體制弊端主要有：政企不分，使政府難以公正對待各類企業，承擔起公共管理者的角色；由於政府為企業設置過多的目標，降低了國有資本運營效率；所有權與經營權不分，企業法人財產不落實，政府承擔著無限責任。
  5. As to the soil basic respiration, the release amounts of co2 decreased, all of which may le d to the degradation of microbes activity in minesoils. relations were analyzed between plants and soils

    Biolog結果顯示，紅壤銅礦區復墾土壤微生物的群落結構也發生改變，隨礦區土壤污染加劇，微生物對能源碳的消耗量和速度明顯升高，但利用效率卻降低。
  6. Bonzi wells ' funk deepened. he is making just 33. 3 percent of his shots, the worst of any rockets regular, and since he started missing layups, he also stopped defending and rebounding

    維爾斯更低迷了。命中率只有可憐的33 . 3 ，是火箭隊中最低的。自從投籃開始下降，他的防守和籃板也一落千丈。
  7. This paper analyzes the characteristics of rainfield and raindrops, gives - formulae to calculate falling velocity of raindrops, studies the frequency of raindrops hitting detonating area of fuzes head on ballistic trajectory based on the theory of exterior ballistics and uses statistical theory to study methods of rainfield simulation

    本文分析了雨場和雨滴的各種特性，給出了雨滴降落速度的計算公式，利用外彈道學的理論研究了引信頭部觸發區在彈道上與雨滴碰撞的頻率，同時還採用統計學手段對雨場模擬的方法進行了研究。
  8. The main question which often arises concerns the evolution of the pressure drop and the filtration efficiency during the filter clogging

    氣壓逐步小以及過濾器閉合進程中的過濾效率降落是常常呈現的重要問題。
  9. However, its management and maintenance is stereotype with little automation, which brings low security, great manpower and material consumption, low efficiency to ship

    但是，目前航標燈的管理與維護方式陳舊落後，自動化程度低，這使得航運安全指數下降，人力物力耗費大，效率低。
  10. The lower interest rates and declining oil prices have undoubtedly helped many developing countries in 1985 and the first half of 1986.

    1985年和1986年的上半年，利率的下降和油價的跌落顯然為許多發展中國家助了一臂之力。
  11. Inverter can be adjusted vertically and horizontally. easy to cope with the seams with different tube od inductor has quick - lift functions copyright by baoding sanfeng electrical equipment co., ltd tel : 0312 - 5990237 5990254 5991434 5990739

    構思巧妙，實用的感應器設有大功率中頻輸出變壓器，起到了隔離作用具有升降前後調整，很方便的對正焊縫感應器抬起落下功能。
  12. We calculated the surface subsidence, horizontal displacement, incline, and current curvature using the groundwater drawdown, conical depression influence radius of water cone and ground property

    根據地下水降深、降落漏斗影響半徑、巖土工程地質性質，計算降水引發的地表沉降值、水平移動、傾斜、曲率現狀值。
  13. The result showed that the biomass of different organs of chinese - fir treated with aqueous extracts of schima superba, castanopsis fargesii and pinus massoniana after six years were increased in some degree, the higher the concentration was, the higher the positive effect was, and low concentration had positive effect on the bark, branch and litter biomass distribution, high concentration had positive effect on the leaf, root and stem biomass distribution ; that the biomass of chinese - fir treated with cunninghamia lanceolata after six years were decreased, the higher the concentration was, the higher the inhibited effect was, and low concentration had positive effect on the leaf, bark, root, branch and stem biomass distribution, high concentration had positive effect on the litter biomass distribution

    結果表明絲栗栲、馬尾松、木荷水浸液處理杉木6年後，各器官的生物量有不同程度的提高，隨著濃度加大其促進作用增強，在低濃度時有利於皮、枝和枯枝落葉生物量分配率，高濃度時有利於葉、根、乾的生物量分配率；杉木水浸液處理杉木6年後，各器官生物量有不同程度的降低，隨著濃度加大其抑制作用增強，在低濃度時有利於葉、皮、根、枝和乾等各器官生物量分配率，高濃度時有利於枯枝落葉生物量分配率。
  14. Abstract : biological invasions are a continuous feature of a non - equilibrium world, ever more so as a result of accidental and deliberate introductions by mankind. while many of these introductions are apparently harmless, others have significant consequences for organisms native to the invaded range, and entire communities may be affected. here we provide a survey of common models of range expansion, and outline the consequences these models have for patterns in genetic diversity and population structure. we describe how patterns of genetic diversity at a range of markers can be used to infer invasion routes, and to reveal the roles of selection and drift in shaping population genetic patterns that accompany range expansion. we summarise a growing range of population genetic techniques that allow large changes in population size ( bottlenecks and population expansions ) to be inferred over a range of timescales. finally, we illustrate some of the approaches described using data for a suite of invasions by oak gallwasps ( hymenoptera, cynipidae, cynipini ) in europe. we show that over timescales ranging from 500 10000 years, allele frequency data for polymorphic allozymes reveal ( a ) a consistent loss of genetic diversity along invasion routes, confirming the role of glacial refugia as centres of genetic diversity over these timescales, and ( b ) that populations in the invaded range are more subdivided genetically than those in the native range of each species. this spatial variation in population structure may be the result of variation in the patchiness of resources exploited by gallwasps, particularly host oak plants

    文摘:生物入侵是不均衡世界的一個永恆話題，尤其是當人類有意或無意地引入物種后.很多引入顯然是無害的，但另外一些則有著嚴重的後果，會給入侵地的生物以至於整個生物群落造成影響.本文總結了分佈區擴張的常見模式，概述了它們對遺傳多樣性和種群結構式樣所造成的影響.描述了如何根據以一批遺傳標記所得到的遺傳多樣性式樣來推斷入侵途徑，來揭示伴隨擴張選擇和漂變在形成種群遺傳樣式中的作用.本文對日益增多的群體遺傳學方法進行了總結，這些技術可以用來在不同的時間尺度上推斷種群規模所發生的巨大變化（瓶頸效應及種群擴張） .最後，我們以歐洲櫟癭蜂（膜翅目，癭蜂科，癭蜂族）一系列入侵的數據為例對一些方法進行了說明.從500 10000年的時間尺度上，多態的等位酶位點上等位基因頻率的數據表明: 1 ）遺傳多樣性沿入侵路線呈不斷下降的趨勢，支持了冰河期避難所作為遺傳多樣性中心的作用; 2 ）入侵地區的種群與該物種原產地的種群相比，遺傳上的分化更為強烈.這種種群結構在空間上的變異可能是被櫟癭蜂開發的資源尤其是櫟樹寄主在斑塊上出現變異的反映
  15. When inadequate n was added, the chloroplast structure in mesophyll cell was damaged in ear leaf, the amount of carbohydrate decreased in mestome sheath, and excessive n - redistribution and n - transportation to grain from vegetative mass appeared, which resulted in earlier leaf senescence. excessive n application led to too high activity of nitrate reductase, excessive vigorous nitrogen metabolism and too much exhaustion of carbohydrate in ear leaf, which resulted in the lack of enough carbohydrate in the lower leaf, meanwhile, the expansive chloroplast grana lamellae in leaf mesophyll cell and starch grain without nuclear in mestome sheath cell was observed, which led to the decrease of chlorophyll content and photosythetic capacity in maize leaf, then the early senescence occured

    氮肥用量不足導致穗葉葉肉細胞葉綠體結構性差，維管束鞘細胞碳水化合物累積減少，營養體氮素再分配率大而引起葉片早衰；而過量供氮則導致生長後期硝酸還原酶活性過高，氮素代謝過旺，消耗了大量碳水化合物，以致下位葉不能得到充足的碳水化合物供應而提早脫落，同時葉肉細胞葉綠體片層結構膨脹，呈「肉汁化」特徵，維管束鞘細胞澱粉粒大量消耗，無核澱粉粒出現，從而葉片葉綠素含量下降，光合能力降低而出現早衰。
  16. The squall line complex continued to move southeast. at about 12 : 30utc 8 : 30 p. m. local time, an area of intense rain, over 100 mm h, moved to just south of ting kau tk, see figure 9 for location to cross the approach path of runway 25r northern runway at a time a plane was making an instrumented approach to runway 25r see figure 10

    颮線群繼續向東南方移動，在大約協調世界時12時30分本港時間下午8時30分，一個降雨率超過每小時100毫米的大雨區剛好移到汀九tk ，位置見圖9南面，橫過25r跑道北跑道的降落航道，而這時正有一架航機以儀表導航方式準備降落25r跑道圖10 。
  17. [ am. j. physiol. 274, c531 ( 1998 ) ], the effects of fluctuations in the degradation reaction rate and the synthesis reaction rate of transcription factor have been investigated through the numerical computation and the analysis theory

    在smolen等人於1998年提出的確定論模型的基礎上，根據實驗的結果，本文在蛋白質的降解率和蛋白質的基本合成率上分別考慮它們的漲落。
  18. Through on - ling circuit supervision, the airport, maintenance personnel can detect lamp faults and promptly carry on maintenance, thus safeguarding flight safety when an airplane takes off and lands, and enhancing the working efficiency of the airfield light maintenance

    通過在線巡檢，機場助航工作人員可發現燈具故障並及時進行維護，從而保障飛機起飛降落的飛行安全，提高機場助航燈光維護的工作效率。
  19. In the power transmission system, reactive capacity and active power is closely related to each other, at feeding power load required active power and reactive capacity. if a mount of reactive capacity could be supplied by far location but no local station, a great deal of reactive capacity and active power would be wasted, and its voltage be descended

    在電力傳輸系統中，無功功率和有功功率是密切相關的，在輸送電力負荷所需要有功功率的同時必須消耗一定量的無功功率，同時輸送無功電力也需要消耗有功功率。如果大量的無功電力不能就地供應，靠長途輸運，就會產生較大的無功和有功損耗及電壓降落。
  20. Aerospace series. parachute fabric. testing of straps and tapes. determination of curvature

    航空航天系列.降落傘織物.帶和窄幅織物的試驗.曲率的測定
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