水的阻力 的英文怎麼說
中文拼音 [shuǐdezǔlì]
水的阻力
英文
water drag- 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...
- 的 : 4次方是 The fourth power of 2 is direction
- 阻 : 動詞(阻擋; 阻礙) block; hinder; impede; obstruct
- 力 : Ⅰ名1 (力量; 能力) power; strength; ability; capacity 2 [物理學] (改變物體運動狀態的作用) forc...
- 阻力 : 1 (阻礙事物發展的外力) obstruction; resistance 2 [物理學] resistance; drag; drag force; nowel; ...
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Some researchers have made study on this subject, such as the generation and evolution of frazil ice, shore ice, bottom ice, ice cover and ice jam, the resistance of freeze - up river, flow capacity and variation of water stage
國內外一些學者通過原型觀測,試驗和數值模擬的方法對水內冰,岸冰,底冰,冰蓋和冰塞的生成和演變,封凍河道的阻力、過流能力和水位變化等有關問題進行了研究。The results of soil trough experiment indicated that, the flow velocity and froude number would add when the rainfall splash intensity rose ; the flow depth and resistance coefficient would decrease when the rainfall splash intensity increased
土槽試驗結果表明:土壤坡面薄層水流流速和弗汝德數隨雨滴打擊強度的增加而增加,水深、阻力系數隨雨滴打擊強度的增加而降低。Work was done in turning the paddle wheel against the resistance of the water.
轉動攪拌輪,克服水的阻力做功。The bird shows how to rig and trim the sails, and what form to give to the prow that it may balance the boat, and divide the air and water best
鳥,告知了如何裝配和使用船帆,怎樣的船首才能保持船身的平衡且最好地減少水和空氣的阻力。The results of flume experiment indicated that, the flow velocity and froude number of the overland flow would fall with the rainfall splash intensity rose ; the flow depth and resistance coefficient would enhance with the rainfall splash intensity increased
水槽試驗結果表明:水槽槽面薄層水流流速及弗汝德數隨雨滴打擊強度的增加而降低,水深、阻力系數隨雨滴打擊強度的增加而增加。The method is described as follows : the velocity of the moving part and the gas chamber pressure were measured with a dynamic test measurement system ; a dynamic model was built on force analysis of the moving part ; the total kinetic resistance replaced the horizontal friction and water resistance ; then the resistance - velocity relation curves at moving stages were obtained ; with the empirical formula of the gas chamber pressure and the resistance - velocity relation curves, the preliminary dynamic characteristics were analyzed and the structural form and key parameters of an underwater assault rifle were determined
具體方法為:由動力學測量系統測得活動件速度和氣室壓力;分析活動件的受力,建立動力學模型;以運動總阻力代替水平方向上的摩擦阻力和水阻力,獲得各運動階段的阻力速度關系曲線;利用氣室壓力經驗公式和阻力速度關系曲線,對水下突擊步槍進行初步的動力學分析,確定其構造型式及主要參數。The interaction between internal waves and a horizontal cylinder is studied by using a laboratory experiment, the focus being the dependence of the factors of the internal waves on the resistance of the horizontal cylinder induced by the internal wave
摘要分析水平阻力與內波波要素的關系,採用實驗室實驗的方法,研究了水平樁柱與內波的相互作用,焦點是研究內波波要素與波阻之間的關系。The basket and pan types cause an increased resistance to flow.
吊籃和平盤式取樣器加大了對水流的阻力。The tension force, shear forces ( including pushing force, cutting force and friction force ), impulse force, hydrodynamic drag on the suction pipes, and the force resulted from the pressure difference, etc, are the main forces for detail discussion in this paper
詳細討論了主要作用力:在波浪補償器作用下的纜繩拉力、耙頭與海床間的土壤剪切力、作用在耙吸管上的水流阻力及由於壓力差在耙頭處產生的推動力等。In order to solve the problems effectively, under the auspices of 863 plan in china, the synthesis diagnosis has been carried by means of measuring and numerical imitating the combustion chamber of refining column, and some conclusions is such as : ( 1 ) through measuring the temperature and combustion in the burning chamber of the refining column, the result shows the temperature difference on the same level is more than that in height direction, and there is a few of co in bottom of burning chamber. ( 2 ) in order to ensure normal work of flue system in lead column in the course of zinc refining, theoretic calculation and measure about the flow resistance of exhaust gas are carried through. the results of study reveal that drawing out force of chimney is inadequate, which is mainly caused by illogicality of flue construction
在研究過程中,採取了現場實測和數值模擬手段對韶關冶煉廠鋅精餾鉛塔燃燒室及排煙系統進行了綜合診斷,具體結果包括如下: ( 1 )完成鋅精餾鉛塔燃燒室內溫度測試以及燃燒狀況的測試,結果發現:鉛塔燃燒室內水平方向的煙氣溫度並非均勻,而且其溫差比上下方向的溫差更大,以及鉛塔燃燒室尾部存在co未燃燼問題; ( 2 )為了保證鉛塔煙氣系統的正常工作,對煙道系統的阻力進行了理論計算及測試分析,結果發現:鋅精餾鉛塔煙氣系統中煙囪抽力不夠,這主要是煙道結構不合理所造成的。The additional resistance caused by sediment transport of bed - load and suspended load is derived from mean energy equation of sediment - laden flow, and the variation of resistance in sediment - laden flow is discussed
從挾沙水流的平均能量方程出發,得到了推移質附加阻力的計算公式及懸移質附加阻力計算公式,並對挾沙水流的阻力進行了討論。The water creates about 12 times the resistance of out - of - water exercise, which helps build strength fast, says aquatic aerobics instructor linda gardner
水會產生大約相當于其他運動十二倍的阻力,有助快速地鍛鏈肌力,水中有氧運動教練琳達卡德納這么說。3 the parmeter of the heating network was recognized in genetic algorithm. on basis of it, the problem of waterpower maladjustment was settled. it provide qualification for even heating, when the heat energy is lack
3運用遺傳演算法對整個管網的阻力系數進行辨識,根據阻力系數解決了水力失調的問題。在熱量不足時,為均勻供熱提供了依據。For the case of transporting suspended fine sand, a single - fluid model is used to calculate the flow resistance by solving the navier - stokes equations. the computed agrees well with the measured. and for the case of transporting medium - sized sand, a two - layer model is used and the model produces a good agreement with the experiment data
對管道輸送細沙懸移質的流場,採用單流體模型進行數值求解n - s方程,計算結果與實驗資料相吻合;對具有分層流動的中沙管道水力輸送,採用兩層代數模型進廳了計算分析,阻力損失的預測結果與實驗吻合較好;最後對管道輸送粗沙的阻力特性和運動機理進行了分析探索,提出了進一步研究的方向。The main contents are as follows : ( l ) through theoretic analysis and flume experiments, the characteristic of water resistance through frames is researched, and transforms relation between resistance coefficients and manning ' s roughness coefficients is established, and then experiential formula of manning ' s roughness coefficients is fitted
主要研究內容如下: ( 1 )通過理論分析和水槽試驗,研究了穿越四面體框架群水流阻力系數的變化規律,建立了阻力系數與框架群等效曼寧糙率系數的轉換關系,擬合出了糙率的經驗計算公式。It is believed that the suit creates less water resistance as it moves, behaving more like a shark skin than a human skin
身穿此種游泳衣在水中移動時,就像擁有一身鯊魚的皮膚一樣,可以減輕水的阻力。As the moving particle in the turbulence boundary layer, the resistance on microbubble from water may be fallen inside the scope of the stokes law
作為湍流邊界層中運動的粒子,微氣泡受到水的阻力可能會在stokes阻力范圍內。Study shows that the effect of the shock of heavy rain on an airplane in the low - level wind shear of thunderstorms is evident, the flight resistance resulted from the roughness of airplane is able to change the flight track and endanger the flight safety, whereas, the increase in the mass of airplane caused by the water film on the airframe and its wings in heavy rain is nigligible
結果表明:雷暴低空風切變中大雨雨滴的沖擊作用是明顯的,被粗糙化的機體所產生的阻力能顯著改變飛行軌跡,並能影響飛行安全;累計在機身和機冀上的水膜厚度造成的飛機質量的增加對飛行的影響可以忽略。The horizontal and vertical momentum loss caused by the shock of heavy rain in low - level wind shear of thunderstorms on the airframe and wing are analyzed, the water film thickness on the airframe and wings estimated, and the flight resistance resulted from raindrops - striking caused by the roughness of airplane when the heavy rain shocks the airplane is discussed
摘要分析了雷暴低空風切變中大雨滴沖擊飛機的機身和機翼而引起的水平和垂直動量損失,估算了大雨累計在機身和機翼上的水膜厚度,並討論了因遇到大雨雨滴沖撞而粗糙化的機體所產生的阻力。Axel jordache rowed slowly out toward the center of the river, feeling the pull of the current.
阿克塞爾喬達虛慢慢地向河中央劃去,他感覺到潮水的阻力。分享友人