積水面積 的英文怎麼說
中文拼音 [jīshuǐmiànjī]
積水面積
英文
catchment area-
Determination of coating surface of aluminium powder on water
鋁粉蓋水面積的測定( 4 ) the maximum water quantity becomes greater, the better is the filtering bed permeability, the higher the river hydraulic conductance, the higher the river level, the larger the water - collecting area and the bigger the distance between collecting pipes. the water quantity varies directly with drawdown
( 4 )濾床的滲透性能越好,河床水力傳導系數越高,河水水位越高,取水面積越大,取水管之間的間距越大,則最大取水量越大;水位降深與取水量成正比關系。The value of correction coefficient of kinetic energy increases as a result. the water surface profiles of flume experiments are computed by three different methods : adjusting the local head loss coefficient, deduction of backwater area, and application of backwater expression
隨后結合實測水位資料,通過採用調整局部水頭損失系數、扣除回水面積以及壅水公式等不同的水面曲線計算方法對實驗水槽一維水面曲線進行計算。For catchment areas greater than gutter capacity, slotted holes can be installed
如果匯水面積大於天溝排水能力,可以在天溝底部打孔。When catchment area, average channel gradient and catchment shape factor of designed culvert or bridge are known, a user can be convenient to get local parameters c, e and b from standard contour charts and easy to calculate flood flow just by a calculator. design period of flood flow is enormously shortened as well as a high precision. estimated flood flow through culvert or small bridge by new calculation model is generally less than by traditional methods, so that much cost is cut down a s reducing the span of culvert or small bridge
以75000km ~ 2的川中丘陵地區為試點研究區,繪制了該地區新模型的參數等值線圖,率定了不同設計頻率的改正系數,使設計者只需在地形圖上獲取集水面積,河道平均坡降和流域形狀系數,在參數等值線圖上查得橋涵所在地的相應參數,使用計算器即可迅速計算出設計流量,大大縮短了設計周期,且精度較高,設計的洪水流量一般低於傳統方法,從而可減小橋涵跨徑,節省投資。According to the result of physical modeling, the regression equation about the decrement of tidal bore height, the percentage of water - resisting area and the distance away from the upstream bridge site is constructed in this paper, the regression equation can be applied in the impact which bridge has on the tidal bore height in qiangtang esturary
根據模型試驗結果,建立了涌潮高度的減小值與中潮位橋墩阻水面積百分比和上游離橋址距離的多元回歸方程,可供錢塘江河口建橋對涌潮高度的影響計算參考使用。It is local impact that bridge being built has on the shape of tidal bore, and this local impact can be recovered in the place which is 300 - 500 long upstream bridge. the impact that bridge being built has on the intensity of tidal bore depends on the water - resisting area of bridge. generally the more water - resisting area is and the nearer the place is away from the bridge site, the more impact is on the intensity of tidal bore
建橋對涌潮形態的影響是局部的,在橋上游300m 500m的范圍內基本可以得到恢復;建橋對涌潮強度的影響主要取決于橋墩阻水面積,一般來講,阻水面積越大,位置離橋址越近,對涌潮強度的影響亦越大。A drainage area threshold is used to produce a continuous network, so that different network is obtained for varying drainage area threshold
為了得到連續的河網,方法中引入了匯水面積閾值的概念,但對于同一流域,利用不同的匯水面積閾值將得到不同的河網。The siphon drainage effect of hank slope will improve if the distance between bailing wells, or controlling drainage area, is smaller
港口岸坡虹吸排水系統中汲水井的間距越小或控制排水面積越小,則越能提高岸坡的虹吸排水效果。Comparison of water level between measured and computation shows that the local head loss coefficient cannot give head loss by spur dike completely, and the effective area of passage is difficult to be ascertain. for this reason the two methods for water surface profile computation cannot predict the raise of water level upstream the spur dike accurately
計算結果表明,局部水頭損失系數並不能完全反映出由於丁壩阻擋所帶來的水頭損失,而丁壩附近的有效過水面積難以準確地確定,這些導致前兩種方法均不能很好地計算出丁壩上游水位的壅高值。The use of the double eccentric structure in the butterfly plate so as to the horizontal valve shaft is lifted a little distance above the pipe central line, and it makes that the area of lower half part butterfly plate is bigger than upper part
該閥採用雙便心閥板,水平安裝的閥軸在管道中心線上抬高一定距離,使閥板下半部分迎水面積大於上半部。With the same slope gradient and slope length, the soil erosion on the dyke slope caused by the runoff mainly depended on the factors such as the runoff, flow velocity, rainfall intensity, rainfall duration, as well as the up - slope drainage area of dyke slope
坡度、坡長一定時,徑流對戧坡的侵蝕主要與徑流量、流速、雨強、降雨歷時,戧坡以上匯聚水量或集水面積有關。The system considers synthetically the influence of estuarine ecosystem on the whole basin and human life from aspects of influence on pacts of the environment, biology and human of ecosystem respectively, and adopts the indices of catchment area, population density, inflow amount, period of river flow cut - off, water quality, biodiversity index number and biomass to evaluate the state of estuarine ecosystem
指標體系綜合考慮河口生態系統對全流域及入類生活的影響,分別從生態系統的環境部分、生物部分以及對人類的影響等3方面,採用集水面積、人口密度、入海量、河口斷流時間、水質、生物多樣性指數和生物量等7項指標對河口生態系統狀況進行評價。A method is proposed, in which the relation between source density ( or drainage density ) and the threshold is used to produce an ideal drainage network, the area threshold when source density ( or drainage density ) show stability is reasonable
提出了一種方法,利用河源密度(或河網密度)與匯水面積閾值的關系,確定匯水面積閾值,當河源密度(或河網密度)趨于穩定時對應合理的面積閾值。There are four characteristics of the evolution of tidal creek as follows : ( 1 ) in the initial stages, tidal creek develops by continuous eroding trace to the source and depriving of the top of other tidal creeks. ( 2 ) the transverse moving of tidal creek occur mostly in the lower part, the middle part and the outlet take second place, and the upper part is more stability. ( 3 ) the different level branches of tidal creek transform into each other in the whole evolution course
潮溝的演變具有以下特點: ( 1 )潮溝在形成初期,不斷進行溯源侵蝕和襲奪以擴大集水面積而發展壯大, ( 2 )潮溝的側向移動主要發生在潮溝的下段,中段和口門次之,上段最為穩定( 3 )不同級別的支潮溝之間處在不斷地相互轉化過程之中。Method of drenching area calculation of counter - flow cooling tower
逆流式冷卻塔淋水面積計算方法的探討Area of water drenching
淋水面積Lake yamzho yumco : situated in the lhoka area, the lake is 638 square kilometers in size, making it the largest lake on the northern slope of the himalayas
位於山南地區浪卡子縣境內,湖面海拔4441米,湖水面積638平方公里,是喜瑪拉雅山北麓最大的內陸湖泊。The shenzhen conference and exhibition center features large area and high grade of waterproofing in its underground works
深圳會展中心地下工程防水面積大、防水等級要求高。At the same time, with the development of urban constructing, area of impenetration is increasing year after year, which makes many seriously short of water city not taking full advantage of rainwater. it not only enormously wastes to precipitation, but also induces flood and waterlogging calamity
與此同時,隨著城市建設的不斷發展,不透水面積逐年增加,又使得許多水資源嚴重缺乏的城市,城區大量的雨水沒有得到充分的利用而白白流失,同時還可能直接造成城市的洪澇危害。分享友人