水頭下降 的英文怎麼說

中文拼音 [shuǐtóuxiàjiàng]
水頭下降 英文
dropping head
  • 水 : 名詞1 （由兩個氫原子和一個氧原子結合而成的液體） water 2 （河流） river 3 （指江、河、湖、海、洋...
  • 下 : 下動詞1. （用在動詞后,表示由高處到低處） 2. （用在動詞后, 表示有空間, 能容納） 3. （用在動詞后, 表示動作的完成或結果）
  • 降 : 降動詞1. （投降） surrender; capitulate 2. （降伏） subdue; vanquish; tame
  • 水頭 : waterhead; head; flood peak水頭落差 head fall; 水頭坡降 water table gradient
  1. ( 4 ) through the hydraulic property experiment of micro - hole lateral pipes of simple sdi in air, it was found that the average pressure of 60 mitre length lateral pipes was at the position of per 40o / o ~ ~ ~ 50 % of the effectual pipe length from the fist micro - hole, major pressure - loss was occurred at the ahead part of half pipe. the pressure uniformity reduced with orifice aperture ? increasing, and the relationship between pressure uniformity and initial water pressure was poor. running under the initial water pressure of 1. 5 meter, the discharge uniformity reduced with orifice aperture ? increasing, and when the orifice aperture smaller than or equal 1. 0mm, irrigation uniformity could achieve above 0. 6

    （ 3 ）通過對空氣介質中簡易地下滴灌的微孔毛管試驗研究發現： 60m管長的毛管平均壓力水頭的位置基本上在距第一孔口的有效管長40 - 45的地方；大部分水頭損失發生在毛管的前半部分；壓力均勻度隨孔徑的增大而減小，但與初始工作水頭關系不密切；在1 . 5m以下的工作壓力下運行，沿程出流均勻度隨孔徑的增大而降低，當孔徑不大於1 . 0mm時，灌水均勻度可以達到60以上；當孔徑大於等於1 . 2mm時，灌水均勻度低於50 。
  2. To investigate the functions of these factors, cells were treated with anti - c - fos, anti - c - jun and anti - ras antibodies and examined microscopically for the cell cycle progression. the results indicated that c - fos - like protein, c - jun - like protein and ras - like protein played important roles in checkpoint regulation in physarum polycephalum. western blot analysis showed that the c - fos - like protein and c - jun - like protein may act in cell cycle checkpoint by changing the cyclin b1 - like protein and p53 - like protein expression ; and the ras - like protein may act by changing the cyclin bl - like protein, p53 - like protein, c - fos - like protein and c - jun - like protein expression

    蛋白免疫印跡分析的結果表iv明，當s期、 gz期和前期細胞內具有功能活性的類ras蛋白的量減少時，細胞中的細胞周期調控因於類cyclinbi蛋白、類c jun蛋白、類c fos蛋白和類p53蛋白的表達水平，與未經抗體處理時相比發生了變化（或升高或下降） ；而山抗體處理引起的多頭絨泡菌細胞內具有功能活性的類c fos和類c jun蛋白的減少，使細胞內類cyclinbi蛋白和類p53蛋白的表達水平與抗體未處理時相比也發生了明顯的改變。
  3. On the basis of analysis for recharge, flow - off and drainage of research area, the paper concludes that the main possible cause for the fall of water head is groundwater exploitation by comparing the curve of rainfall - time and the curve of observation heads of some observation well

    在充分分析研究區補給、徑流和排泄規律的基礎上，文章通過比較降雨歷時曲線、部分觀測孔觀測水頭曲線得出開采量可能是影響水頭下降的主要因素。
  4. Longgang nature reserve plays an important role in preserving two langur species of both white - headed langur and francois langur. interview and field survey methods were used to survey the distribution and population size of these two langurs in this natural reserve from december 2001 to january 2002. the result indicated that the reserve has 8 groups of white - headed langur with 68 individuals in longrui and 10 groups of francois langur with 75 individuals in longgang. the distribution area and population size of both of the two langurs in this reserve have greatly declined in the past decades. they are seriously threatened and have high risk of disappearance from this reserve if no effective measures are to be taken at once

    為了確定弄崗自然保護區內白頭葉猴的種群數量，彌補黑葉猴種群數量的空白，掌握此保護區葉猴的生存現狀，採用訪問法和實地數量統計法相結合的方法對弄崗自然保護區的弄崗、隴瑞和弄呼3個部分進行深入的調查研究.調查結果表明，在隴瑞片范圍內，共有8群白頭葉猴，種群大小在68隻左右，和20世紀80年代末的244隻相比，數量下降相當驚人;在弄崗片內，共記錄到黑葉猴群10群，最大的種群為11隻個體，最小的種群是4隻個體，共計約有75隻黑葉猴（絕對數量統計） ;弄呼的黑葉猴種群已經于上個世紀的晚期消失.造成目前狀況的因素主要是過度狩獵和其他形式的過度干擾.弄崗自然保護區的葉猴種群數量已經接近可持續繁殖種群的最低水平，如不採取有效的保護措施，這個種群將很可能在短期內消失
  5. Dc - g570 mainly for the carving of artistic works suchas crystal dianmond jade and various medals portraits wood board characters. laser machine for the carving of artistic works. the processing area is 500700mm. the up and down board can move 400mm up ward or downward. the 40mm laser end can move at the highest speed of 1500m s. it is under the control of the dsp industrial system with the differentiation rate 0. 015mm

    如：水晶玉石等雕刻，各種獎碑獎牌的雕刻人像雕刻木版書雕刻工藝禮品包裝盒雕刻，加工面積500700mm ，電動升降平面上下400mm可調，激光頭40mm可調，最大移動速度為1500mm s 。 dsp工業級高速控制，分辯率0 . 015mm 。
  6. With that i scuttled down the companion with all the noise i could, slipped off my shoes, ran quietly along the sparred gallery, mounted the forecastle ladder, and popped my head out of the fore companion

    說完，我急忙從升降口跑下去，一邊盡量弄出很大的響聲。然後，我脫了鞋，悄悄地穿過圓木走廊，登上水手艙的梯子，把頭伸出前升降口。
  7. Howeer, in the 5 days after estradiol was discontinued, migraine incidence increased by 40 percent, consistent with a delayed estrogen withdrawal

    但是雌二醇治療中斷五天內，偏頭痛發生率增加40 % ，同延遲雌激素水平下降結果是一致的。
  8. Dc - g460b laser engraving machine for handicrafts mainly used for making all kinds of handicrafts, e. g. the engraving of crystal, stones, etc., all kinds of medals and cups, wood combs, and packing boxes of handicrsft gifts. processing area : 400600mm ; electricpowered elevator platform adapted in the range of 20mm maximum moving speed : 1500mm s ; dsp industrial - strength usb high - speed control ; resolving power : 0. 015mm

    如：水晶玉石等，雕刻各種獎碑獎牌的雕刻，人像木書雕刻工藝禮品包裝盒雕刻，加工面積400600mm電動升降平臺上下200mm可調，同時激光頭上下20mm可調，最大移動速度1500mm s ， dsp工業及高速控制分辯率0 . 015mm
  9. ( 2 ) the method of finite element discrete and optimal parameter back analysis is adopted. ( 3 ) concentrated on the question of high external water pressure of the deep - lying tunnel, the basic theory and method calculating external water pressure are systematically studied. ( 4 ) based on jinping cascade 2 hydropower station, numerical simulation rain infiltration of seepage field under different drainage pattern and grouting pattern are studied, also, the high external water pressure is analyzed and studied and some seepage control measures are put forward

    （ 2 ）採用有限元離散?優化法進行參數的反演分析； （ 3 ）針對深埋隧洞的高外水壓力問題，進一步分析和研究了襯砌水荷載及外水壓力的作用機理和計算方法； （ 4 ）以錦屏二級水電站深埋長引水隧洞作為本文的主要研究對象，採用考慮降雨入滲滲流場分析的方法對排水方案和灌漿封堵方案不同情況下的滲流場的水頭分佈進行了數值模擬，並對其外水壓力進行了分析和研究，提出了滲流控制的具體措施。
  10. Through an example of dewatering engineering at international stock exchange hotel in wuhan, calculating with program, and ensuring foundation pit draw down, the optimum unit value of depth of filter tube and stop water heavy curtain to make water drawdown minimum was got, and put forward a sort of method of thinking in optimizing design of foundation pit dewatering

    通過國際證券大廈降水工程實例，利用程序進行計算，在保證基坑降深的前提下，找出水頭降最低的止水帷幕的深度和濾水管長度的最佳組合值，為深基坑降水優化設計提供了一種思路。
  11. He thinks that hong kong s young people are well positioned. while the standard has dropped somewhat, still they have generally good language skills and flexible attitude

    他認為香港年青人仍有優勢，雖然水準略為下降，但普遍來說，他們仍具備良好的語言能力和靈活的頭腦。
  12. But, because china ' s current population and family planning programmes and policies have won understanding and support from the people, the fertility level of the population has steadily reduced and the trend of overrapid population growth has been effectively checked along with the country ' s economic and social development

    但是，由於中國現行的人口與計劃生育方案和政策得到了人民的理解和支持，隨著中國經濟、社會的發展，人們的生育水平不斷下降，有效地抑制了人口過快增長的勢頭。
  13. The nonlinear exponent is a function of the radial distance from the pumping well. the two - regime well flow problems being in the steady state. in the fourth chapter, the problems of two - regime well flow have been discussed concentrating on a kind of special seepage law

    第四章對一種特殊的非線性滲流規律即充分紊流的情況，進行了全面、詳細地討論，推導出了該情況下井流問題的滲流速度、水頭降深和井流函數的解析表達式，作出了些具有代表性的標準曲線。
  14. On june 5, 2003, a worker from the beijing chaoyang rubbish recycling center takes a shower

    2003年6月5日，北京市朝陽區垃圾無害化處理中心的一位工人在水龍頭下沖涼降溫。
  15. Characters including : fuel atomization device replaced by gas sprayer, gas supply controlled by gas flux valve ; separate fuel supply from combustion - supporting air, regulate air supply through changing the electioneering voltage to make the fully burning and improve efficiency and reduce fuel consume ; arts and crafts are simple, the modification of the oil heater ' s configuration is little and the heating power is not below the oil heater ' s level ; because of falling the voltage of electioneering, greatly descend the noise of the sample machine compared with the original

    其特點是：以燃氣噴頭替代原機燃油霧化裝置；以燃氣流量控制閥控制燃氣的供給；燃氣的供給與助燃空氣的供給相分離；通過改變主電機的電壓，調整空氣的供給量，使燃燒更加充分完全，並進一步提高了熱效率，降低了燃料消耗；工藝簡單，對原機型改動較小；樣機的加熱功率不小於原機型水平；此外，由於主電機電壓的降低，使樣機的整機噪聲比原機大大下降。
  16. The primary contents are as follows : ( 1 ) based on the fundamental seepage physical equation, the basic differential equation of saturated - unsaturated seepage in porous mediums has been deduced, in which the pressure head is the fundamental unknown quantity. a calculated model for analysis of saturated - unsaturated seepage field with the boundary condition of rain infiltration also has been developed

    總體說來，本文主要從以下幾個方面開展了研究： （ 1 ）由基本滲流物理方程出發，以壓力水頭為基本未知量推導多孔介質三維飽和?非飽和滲流微分方程，在此基礎上分析了邊坡在有降雨入滲條件下滲流的定解條件和計算模型。
  17. Hong kong has made considerable progress in reducing street - level pollution through our motor vehicle emissions programme. we have also turned our sights to power plant emissions and volatile organic compounds see

    香港實施了車輛廢氣管制計劃后，路邊空氣污染水平顯著下降，刻下我們的焦點已轉移至發電廠排放物和揮發性有機化合物等污染源頭詳見
  18. Results show that the improved proposals can effectively lower the raised level of reversed head at no. 2 lock

    結果表明，在兩線船閘運行的情況下，改進方案能有效地降低二線船閘反向水頭的壅高。
  19. The effects of the drought are dramatically seen at lake mead, nev., where the shoreline has shrunk so considerably that it has forced a marina to relocate from newly dry land

    我們可以通過位於內華達州的美國最大的水庫密德湖看到乾旱所帶來的戲劇性的影響，海岸線也降低了，水位的下降讓這里的碼頭不得不重新建設。
  20. As estrogen leels began to rise, migraine incidence began to decline, the inestigators found

    研究人員發現，當雌激素水平升高，偏頭痛的發生率開始下降。
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