water-air boundary 中文意思是什麼
water-air boundary
解釋
水-氣界線-
This represents a boundary where the water seeps out of the soil into air.
這個邊界是水從土層中滲出進入空氣的地方。 -
This paper establishes a model simulating dam actual placing process and considering the non - continuity of initial temperature on the boundary of new and old concrete, daily air temperature change, concrete - placing temperature, hydration heat, heat insulation on boundary, water - storing process, placing intermission and curing with water. the calculation of stress field considers the concrete weight, static water pressure, thermal stress, different autogenous volume change between rcc and normal concrete, change of elastic modulus of concrete with age and creep action
考慮了乞今最為全面的初始條件和邊界條件，包括模擬壩體的實際升程過程，考慮了新老混凝土接觸面上的初始溫度不連續，逐日的氣溫變化，混凝土的入倉溫度，水化熱溫升，邊界保溫，水庫蓄水過程，澆築間歇以及灑水養生等因素；應力場的計算考慮了混凝土的自重，靜水壓力，溫度應力，常態混凝土與碾壓混凝土不同的自生體積變形，混凝土的彈性模量隨齡期的變化以及徐變的作用。 -
Topics include : molecular and turbulent diffusion, boundary layers, dissolution, phase partitioning, bed - water exchange, air - water exchange, settling and coagulation, buoyancy - driven flows, and stratification in lakes
探討課題計有:分子和紊流擴散、邊界分層、溶解、相之間的分割、底床與水間的交換作用、空氣與水間的交換作用、沉降和混凝、浮力流以及湖泊分層作用。 -
Frictional dissipation and cutting off the water supply in the boundary layer by downslope adiabstic warming air are main mechanisms of terrain affecting tc intensity
而摩擦耗散作用和絕熱增溫的下坡干空氣對邊界層水汽的切斷作用則是引起熱帶氣旋減弱的主要機制。 -
The turbulent characteristics of high - velocity sediment - laden and aerated flow are more other than the clear water flow of single - phase and current of low speed. in a special circulating system with high velocity flow, some flow parameters such as boundary shear stress and pulsation pressure are measured. an investigation is made on the turbulent characteristics of the three - phase flow of water, air and sand
本文針對高速含沙摻氣水流的運動規律有別于低速水流及清水單相流，在自己研製的高速渾水循環系統中，通過對高速含沙摻氣水流壁面剪切應力和脈動壓強等參數的量測，分析了水沙氣三相流的紊動特性，探索了泥沙對固壁的磨蝕機理及減蝕措施，其主要內容包括以下幾個方面： 1 -
On some occasions when the calf surfaced, it seemed to misjudge the air water boundary and shoot its head too far out of the water
有時幼豚浮上水面的時候，往往把頭伸得太高，好像錯誤估計海面的高度似的。 -
When a ray of light encounters a boundary, such as that between air and water, its speed changes ; so does its angle of travel
當一束光線遇到一個界面，如空氣與水之間的界面，光的速度就會發生改變，光的運動角度也就同樣發生改變。 -
Build the compute model of all - glass evacuated solar collector tube in fluent according to the physical model and the interface of fluent, set the boundary conditions on the basis of the fact of three different states of air stagnation, water stagnation and heat loss. the calculation results have a good match with the test results. 2
根據太陽能真空集熱管的物理模型和fluent的建模要求，建立了太陽能真空集熱管的fluent計算模型，根據太陽能真空集熱管在悶曬、空曬和散熱狀態下的工作條件，設置fluent計算的邊界條件，對三種工況下的流場和溫度場進行計算，計算結果與實驗測試結果非常吻合； 2 -
For the cross - boundary environmental protection issues, we have examined the concerted efforts undertaken by the guangdong province and hksar government especially in the aspects of air quality of the pearl river delta region, water quality of dongjiang, etc
至於跨界環境保護方面，我們亦已研究廣東省及香港特別行政區合作進行的環保項目，尤其著重分析珠江三角洲的空氣質素及東江水質等項目。
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