河流流速 的英文怎麼說

中文拼音 [héliúliúsù]
河流流速 英文
stream velocity
  • 河 : 1 （天然的和人工的大水道） river 2 （指銀河系） the milky way system; the galaxy 3 （特指黃河） t...
  • 流 : Ⅰ動1 （液體移動; 流動） flow 2 （移動不定） drift; move; wander 3 （流傳; 傳播） spread 4 （向壞...
  • 速 : Ⅰ形容詞（迅速; 快） fast; rapid; quick; speedy Ⅱ名詞1 （速度） speed; velocity 2 （姓氏） a surna...
  • 河流 : rivers; stream
  • 流速 : [機械工程] velocity of flow; strength; [水文] current velocity; current speed; flow rate流速管 pi...
  1. It can also restrain the decomposition of organic substances in the soil and the bind of nitrogen, and wash away the nutritious elements, such as magnesium, calcium, and potassium. the acid rain deprives the soil. it acidifies the rivers and lakes, and dissolves the heavy metal in the soil into water, therefore poisons the fish

    它可以直接使大片森林死亡，農作物枯萎；也會抑制土壤中有機物的分解和氮的固定，淋洗與土壤粒子結合的鈣、鎂、鉀等營養元素，使土壤貧瘠化；還可使湖泊、河流酸化，並溶解土壤和水體底泥中的重金屬進入水中，毒害魚類；加速建築物和文物古跡的腐蝕和風化過程；可能危及人體健康。
  2. The pollution problems of the rivers and streams in that region have accordingly improved considerably in the past decade. however, as the base flow of local rivers and streams is generally small, their assimilative capacity is therefore low. this, coupled with the continued development and hence population growth in the river catchments, as well as the lack of maintenance of many private septic tank systems, has caused the water quality of some rivers and streams in the northwest new territories to remain unsatisfactory

    而溪流的污染情況在過去的十年間亦因此而有所改善，但由於本地河溪的流速相當慢，河流的自凈能力相對偏低，而河溪的周邊不斷發展，人口持續增加，加上部分私人的化糞池系統欠缺打理，未能有效運作，所以新界西北仍有部份河溪水質未如理想。
  3. At some higher velocity the ripples or dunes disappear and the bed becomes flat.

    流速增大時，沙紋、沙壟消失，河床變平。
  4. The second report, by eric rignot of the us space agency s jet propulsion laboratory in pasadena, us, showed an eightfold increase in the speed of three glaciers, called hektoria, green and evans, between 2000 and 2003

    埃里克?里戈諾特供職於美國國家航空航天局設在帕薩迪納市的噴氣推進實驗室，他所做的第二份報告顯示， 2000年到2003年間三條分別名為黑克多利亞、格林和埃文斯的冰河的流速增加了8倍。
  5. The second report, by eric rignot of the us space agency ' s jet propulsion laboratory in pasadena, us, showed an eightfold increase in the speed of three glaciers, called hektoria, green and evans, between 2000 and 2003. two others, jorum and crane, moved twice as quickly at the beginning of 2003 than they did in 2000 and nearly three times as fast by the end of the year

    埃里克里戈諾特供職於美國國家航空航天局設在帕薩迪納市的噴氣推進實驗室，他所做的第二份報告顯示， 2000年到2003年間三條分別名為黑克多利亞格林和埃文斯的冰河的流速增加了8倍。
  6. Numerical simulation study on three - dimensional velocity field of fluvial channel current

    河道水流三維流速場的數值模擬研究
  7. One of wetland s function is to filter the pollutants. when the river goes through wetland with pollutants, the hydrophyte will slow down the speed of the stream and attract heavy metal so that those pollutants will steep in the ground. the chemical reaction of nitrogen and phosphorus from those water plants prevent water from oxidation

    濕地具有過濾污染物的功能，當河水挾帶著污染物流經濕地時，濕地上的水生植物，會使水流速度減緩，吸附重金屬，且讓污染物沈澱在濕地的底部，並藉著植物留存氮和磷，來預防水質優氧化。
  8. The collapse of the larsen b ice shelf two years ago has accelerated the flow of glaciers into the nearby weddell sea

    兩年前崩塌的"守護神b "冰架巨大的浮動冰層加快了冰河流入附近的威德爾海的速度。
  9. " these two papers clearly illustrate, for the first time, the relationship between ice shelf collapses caused by climate warming, and accelerated glacier flow, " said dr rignot

    里戈諾特博士說： "這兩份報告第一次清楚地說明了氣候變暖導致的冰架崩塌與冰河流速加快之間的關系。
  10. The velocity in the intake is not equal to the stream velocity.

    進口的流速不等於河水流速。
  11. Two others, jorum and crane, moved twice as quickly at the beginning of 2003 than they did in 2000 and nearly three times as fast by the end of the year

    另外兩條分別名為喬洛姆和克萊恩的冰河在2003年初的流速比2000年增加了一倍，到2003年年底，流速幾乎增加到原來的3倍。
  12. By modeling of " y " - shaped junction of the compound river channel with an intersection angle 90, the flow velocity and water level at the junction were obtained by use of the acoustic doppler velocimeter ( adv ) and point gauges

    摘要通過製作交匯角為90的復式斷面河道" y "型交匯河口模型，利用三維聲學多普勒流速儀（ adv ）和測針獲取流速及水位數據，對支流河口處的水流流態包括水面形態、水流流速和水流分區進行分析。
  13. By using the three - dimension acoustic doppler velocimeter to measure velocities of flow in an ecological river before and after arrangement of cropping loops, the velocity distribution, turbulence intensity and reynolds stress before and after arrangement of cropping loops are compared

    摘要採用三維超聲波多普勒測速儀對河道生態修復中種植圈布設前後的工況量測，比較了布設種植圈前後的流速分佈、紊動強度和雷諾應力的變化。
  14. What ' s more, we put forward some experienced formulas on the basis of the cortical analysis. the result of the research show that by installing diffluent piers with low ridge, we can eliminate the root of oscillatiny water jump, perfect the energy dissipation effect of water jump, also, we can improve the flow condition of down - stream. the fact that the main flow of down - stream is in the middle, not only effectively lower the speed of the bottom flow in the ridge rear, alleviate the erosion to the river bed, but also avoid the heavy wave resulted from the main flow in the surface, thus improve the surface wave of down - stream obviously. we can work out the body style parameters of diffluent piers with low ridge according to the project flow condition and experience formulas, and then reckon the down - stream surface wave condition for the protected building of the down - stream bank

    研究結果表明：設置低坎分流墩后，消除了擺動水躍水舌擺動的根源，提高了水躍的消能效果，改善了下游水流流態。下游水體的主流在中部，既有效的降低了坎后水流底流速，減輕水流對河床的沖刷，又避免了主流位於表面導致波浪過大的結果，下游的水面波浪明顯得到削減。依據經驗公式，可根據工程水流條件設計出低坎分流墩的體型參數，進而估算出下游沿程的水面波浪，為下游岸邊的砌護提供依據。
  15. A number of examples can be given of the way in which natural environments are being rapidly changed - amazonia, for instance

    可以舉出很多很多的例子說明自然生態環境已經被迅速地改變了，亞馬遜河流域就是最好的例證。
  16. It makes the deduction on design tidal level process more reasonable than ever. finally, taking into account the observed data of tidal level are much more integrated than observed data of tidal discharge and the correlative relationship are established based on large numbers of samples. then, the sub stage maximum tidal discharges and tidal velocities are obtained according to the regressive equations and the observed tidal level, and the sub stage design maximum tidal discharges and tidal velocities are estimated by way of frequency analysis

    最後，針對橋位河段實測潮流資料短缺而潮位資料相對完整的實際情況，基於大量樣本建立了潮流量與潮汐要素的相關關系，利用實測長系列潮位資料得到分期最大潮流量、潮流速系列，經頻率分析確定了分期設計最大潮流量、潮流速。
  17. Though the water levels cross one section are almost equal, the velocities differ greatly. at the some cross - section, the velocity in the in the quirk may be double as that on the floodplain. the water surface will rise hi the southern branch because of the improper diffluence ratio, if using the designed diffluence col

    淮河入海水道河口段水位值橫向分佈相差無幾，而流速的橫向變化較大，泓灘平均流速差最大可達一倍以上，在現有的分流口設計條件下，若按設計的南北汊分流比，南分流口有壅水現象發生，如果南汊分流增大到800m ~ 3 / s左右時，則水流較為通暢。
  18. The suspended sediment of natural streams is usually made up of grains with a broad spectrum of sizes and fall velocities.

    天然河流的懸沙，通常系由各種大小尺寸和沉速的粒子組成。
  19. The flow of air in a jet stream can be likened to a fast - flowing river. where the fast - flowing river meets slow - moving water near the banks, waves and swirls are often generated

    空氣在高空急速流動，就好像水在猛急河流中流動一樣，當猛急的河水遇上河岸旁緩緩的水流時，便會產生波浪和漩渦。
  20. The surface material is liable to erosion wear with high - velocity sediment - laden flow, hi this paper, sand wear mechanisms are discussed and some effects of significant flow factors on material wear are analyzed ; the possibility of preventing erosion wear with aeration is proposed ; based on test data, the formula for calculating the concrete material wall surface wear rate is derived. it is indicated that the wear rate is related to the air concentration, the strength of material, the flow velocity and the sediment content. it is shown that wear rate can be reduced with the help of flow aeration

    分析了空蝕與磨蝕的不同物理特徵；探討了沙粒磨蝕機理，提出了影響磨蝕vi河海大學博士學位論文一的因素；研究了摻氣抗磨的可能性：建立了混凝土材料壁面磨蝕率的計算公式；說明含沙水流對固壁材料的磨蝕率隨摻氣濃度、材料強度的增大而減小，隨水流流速、含沙量的提高而增大；利用摻氣可有效地降低過流表面的泥沙磨蝕率。
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