揚水試驗 的英文怎麼說
中文拼音 [yángshuǐshìyàn]
揚水試驗
英文
pumping test- 揚 : Ⅰ動詞1 (高舉; 往上升) raise 2 (往上拋撒) throw up and scatter; winnow 3 (傳播出去) spread; ...
- 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...
- 試 : 名詞(古代占卜用的器具) astrolabe
- 驗 : 動詞1. (察看; 查考) examine; check; test 2. (產生預期的效果) prove effective; produce the expected result
- 試驗 : trial; experiment; test
-
Conservation agriculture helps to retain crop residue on the soil surface to minimize water and wind induced soil erosions. consequently, sand storms are reduced. it also leads to increases in soil organic matter by sequestrating atmospheric co2 to reduce greenhouse gas effects
20世紀80年代,我國科技人員開始對保護性耕作技術進行試驗研究,通過研究表明,在中國實施保護性耕作可以起到蓄水保墑節本增效抑制農田揚塵增加土壤有機質的作用,具有明顯的經濟生態效益。Study on monitoring genotoxicant pollution in surface water of yangzhong city using micronucleus test and comet assay
應用蠶豆根尖微核技術和彗星試驗監測揚中地表水遺傳毒物污染的研究Based on many references form civil and abroad, the author mainly studies the measurment theory and method for flux, raising height, axial power and rotational velocity. avoiding many complicated and intermediate courses for power wastage analysis, introduces the electric measurement and using efficiency curve of motor in measureing axial power, and satisfies the automatization of the device. the paper also provides a new method, inductive winding, in measuring rotational velocity of electromotor, supplys limitations of other method in measuring rotational velocity of electromotor in water, and meet practical needs in developing diving electric pump for corporation
作者在參閱大量國內外有關文獻,著重探討了水泵流量、揚程、軸功率、轉速的測試原理和測試方法,提出了採用電測法並結合電機效率特性曲線測量水泵軸功率,從而避免了損耗分析法中大量復雜的中間過程,滿足了試驗裝置的自動化測量要求;採用漏磁感應線圈法測量電機轉速,彌補了其它轉速測量方法對水下電機測試的局限性,適應了萊恩公司開發潛水電泵的實際需要。Experimental research, demonstration and extension conducted by china, as well as many years of practice in canada, have shown that the development of conservation agriculture can reduce water and soil erosion, reduce dust, resist drought, save water, increase the soil fertility and increase the efficiency
中國開展的試驗研究示範推廣和加拿大多年的生產實踐證明,發展保護性耕作,可以減少水土流失抑制揚塵抗旱節水增肥地力節本增效,達到保護農田與生態環境的可持續發展目標。Experimentation of sewage pumping station based on predictive control with vvvf is carried out. the experimentation result shows that the sewage pumping station predictive control system can be running under the condition of high water level. by using this control mode, inflow sewage is pumped out entirely
在模擬研究基礎上,搭建了模擬試驗系統,在實驗室條件下,對污水泵站排放系統進行了結合變頻調速的預測控制模擬試驗,試驗結果表明,採用預測控制,可以使系統運行在高水位低揚程的工況下,使流入泵站管網的污水等量排出,實現了節能無污的控制目標。Aiming at the present low efficiency of well irrigation works and through pumping tests and theoretical analysis, the paper derives a method for calculating the optimum water yield, the best lifting distance and economic pipe diameter of low pressure pipe delivery system of irrigated area by wells, increasing the efficiency of motor - pumped wells
針對目前井灌工程效率低下的問題,通過抽水試驗,經過理論分析,推導出了井灌低壓管道輸水灌溉系統的最優出水量、最佳揚程和經濟管徑計算方法,從而可提高機井灌溉效率。A test system was developed and an l9 ( 3 ^ 4 ) orthogonal experiment design was used to test the pump efficiency under different flow rates, lifts, electric voltages and currents
並設計了試驗系統,採用l9 ( 3 ^ 4 )正交試驗,以離心式水泵效率為試驗指標,進行了離心式水泵的流量、揚程、電壓和電流的測量。Until now, there have been a few reports on the damage of the water pumps caused by sand and water cavitation. by use of the test loop for solid and liquid two phases, under the condition of 3 % head drop, the damage location and relative degree of the sand and water cavitaiton occurred on the impeller were tested and researched. the result was, them, compared with the results under the condition that water cavitation occurred and no cavitation but only wear occurred. the differencts were analyzed. the analysis result can be used as the basis of the further research and the improvement of the impeller shape
目前含沙水汽蝕對水泵損傷方面的報導甚少,本文利用固液兩相流試驗臺,對離心泵閉式葉輪在含沙水汽蝕時( 3揚程下降點)的損傷部位和相對程度進行了試驗研究,並將此結果與清水介質發生汽蝕時的損傷情況[ 13 ]及含沙水無汽蝕情況下的磨損情況[ 7 ]相比較,對其差異進行了分析,為今後進一步探討葉輪損傷機理和葉型改進提供了實驗依據。分享友人