Through computation on runoff regulation incorporated with flood control and water benefit promoting,computation on power balance of Guangxi power grid,analyzing of cost of power system,as well as calculation of downstream unstable flow, 540 MW is selected to be installed in the station.
百色水利枢纽是一座以防洪为主，兼有发电、灌溉、航运、供水等综合效益的工程，通过兴利与防洪结合的径流调节计算，广西电网的电力电量平衡计算，电力系统现值费用计算，以及电站下游不稳定流计算，最后选定电站的装机容量为５４０ＭＷ。
This paper discusses the theoretical solution to the transient flow of the urban high-pressure gas pipeline network with the numerical method of partial differential equations and the Newtonian methods,using Visual C++ to have a program of the pressure distributing with the change of consumer charge in the high-pressure gas pipeline network.
采用偏微分方程特征线的数值分析及解非线性方程牛顿迭代法,对燃气高压管网不稳定流动问题从理论上进行了求解,并用Visual C++编制了用户负荷随时间变化时高压管网压力分布的动态模拟程序。
This paper discusses the calculation method of transient flow with constant temperature for high-pressure gas pipeline based on characteristic line, considering friction term, inertia term and gravity term.
对高压燃气管道考虑了摩擦项、惯性项、重力项的等温不稳定流动,用特征线法的计算方法进行了探讨。
Analytic solution of transient flow in gas transmission pipeline are obtained by separation variable method, and distribution function of pressure and flow in gas transmission pipeline are defined.
用分离变量法求出了燃气长输管道不稳定流的解析解,得出了长输管线压力、流量的分布函数。
Study on Short-term Optimal Scheduling and the Influence of Unsteady Flow on Navigation of Three Gorges Cascade;
三峡梯级短期优化调度与航运的不稳定流研究
The discharge calculation coefficient k,x can be used to the discharge calculation under the condition of fixed numerical value,solves some special demands in water power planning and design and similar calculation of unsteady flow in the pondage water power station.
马斯京根法流量演进系数K,x,在数值不变的条件下应用于河段短时段的流量演算,解决了水利水电工程规划设计中的一些特殊要求和水电站日调节不稳定流演进的近似计算问题。
Thus,some special demands in water conservancy and hydroelectric design as well as the approximate calculation problems of unsteady flow for daily-regulation hydropower station are resolved.
按长时段推求的马斯京根法流量演进系数K,X,在数值不变的条件下应用于河段短时段的流量演算,解决了水利水电工程规划设计中的一些特殊要求和水电站日调节不稳定流演进的近似计算问题。
We expect to pass through some slight turbulence
我们预计将经过一段轻微不稳定气流，
The dependence of crops on the weather makes farming very uncertain.
仰赖天气的收成，使农业非常不稳定。
unstable flow of a liquid or gas.
液体或气体的不稳定的流动。
Lattice -Gas Simulation of Kelvin -Hemholtz Unsteady Flow
Kelvin－Hemholtz不稳定流动的格子气仿真
violent or uneven movement of air or water
猛烈的或不稳定的气流或水流
Air leakage to the float bowl could result in imbalance of the carburetor.
空气漏入浮子室中，会使化油器不稳定。
The air conditions are uncertain.Please fasten your seat belts.
天气状况不稳定，请系牢您的安全带。
Flame instability analysis of diethyl ether-air premixed mixtures at elevated pressures
二乙醚-空气预混火焰的不稳定性分析
Liquid drains from the upper surface of the bubble and it soon becomes unstable.
液体从气泡表面排出，气泡很快变得不稳定。
The heavy rain might settle the changeable weather.
这场大雨也许能使变幻不定的天气稳定下来。
Thus becalmed, the clouds are more susceptible to wave instabilities.
所以，这些云气较易受重力不稳定性的影响。
The mountainous Tibetan terrain is hazardous and the weather uncertain.
群山连绵的西藏地区危险且气候不稳定。
We experienced some slight turbulence flying over the Atlantic.
我们飞越大西洋时, 遇到一点不稳定的气流.
The quiet, balanced decisions don't make news.
那些心平气和的、稳妥的决定都成不了新闻。
Owing to the uncertainty of the weather, outdoor cafes are not a feature of English life.
由于天气的不稳定性，露天餐馆并非英国特色。
Aerodynamic (passive) instability is a disadvantage for manned vehicles.
气动力（被动）稳定对于载人飞行器是不利的。
The unsteady air is the most dangerous source of disturbance for astronomical photography.
不稳定的空气便是天文照相最危险的干扰源。
The Numerical Simulation of Interfacial Instability for Gas-assisted Co-extrusion Molding;
气辅共挤成型界面不稳定的数值模拟研究