讨论了含梯级水电站的大型水火电力系统有功功率最优分配的数学模型，考虑了水电厂上、下游水位的变化、梯级水电厂间的水流时间延迟等因素。
In this paper, we discuss a mathematical mode for optimization of active power dispatch of large-scale hydro-thermal power systems with cascaded hydropower stations.
在普鲁斯特的《追忆似水流年》中，叙述者在安静地思考着一块饼干一段时间后，激励他去解开记忆的秘密。
In Proust's In Search Of Lost Time, the narrator is prompted to unlock the secrets of memory after some quiet time contemplating a biscuit.
吊桶汇合了水流，桶中的水位线就是水流速度以及注水时间的函数。
The bucket integrates the water flow; the level of water in the bucket is a function of the rate of water flow and how long the water has been flowing in the bucket.
例如，在桥梁的建造中，罗马人发现如果逆流的桥梁支撑部分是“V”型的，尖冲着水流，那么支撑部分会存留更长时间。
In bridge building, for example, the Romans discovered that if the upstream bridge supports were shaped as a "vee" and pointed into the current, they would survive longer.
时间就像一条河流，你不能两次踏入同一条河流，因为水流走了再也不会回来。
Time is like a river. You cannot touch the same water twice, because the flow has passed will never pass again.
提出了恒定流与非恒定流的水流结构相吻合的开启时间。
Therefore, the opening time when the unconstant flow structure corresponds to the constant flow structure is presented.
而水流速度决定了其在水体中的滞留时间。
水流网络形成的时间点可能是关键。
The timing of the water networks could be the key to making sense of them.
脉冲氧活化水流速度测井解释的关键是准确求解时间谱上水流信号的峰位。
One of the important steps concerning data interpretation of impulse oxygen activation water-flow logging was to accurately locate the peak position in the time spectrum.
皮肤病医生、英国皮肤基金会发言人安贾莉·马赫托博士说，人们的洗澡时间也应该短一些，而不是长时间在水流下耗费精力。
Dr Anjali Mahto, consultant dermatologist and British Skin Foundation spokesperson said people should also keep their showers short rather than languishing under the water.
河川可以受到一段时间的封堵，而使水流受到控制，但终将决堤而出。
A river may be dammed, and its water controlled for a time, but eventually, it will force an outlet.
洗手和刷牙时，随时开关水龙头，不让水流淌过久，并缩短淋浴时间。
Make an effort to turn the faucet off while washing your hands or brushing your teeth. Take a shorter shower.
如果能够很好的利用数值模拟解决这类问题，不仅可以很好地对这些水流流动结构进行研究，同时相对于试验来说可以节省人力、财力和时间。
If this kind of problem can be solved using numerical simulation, it not only can do some research on those flow structure, but can save manpower, budget and time.
从油墨研磨的角度出发，分析油墨研磨过程中压力、水流量、时间因素对研磨出来的油墨质量的影响，进而分析其对胶印印刷品密度的影响。
This paper analyzed the effect of pressure, water flow, and time factors in ink grinding process on the grinding quality of ink, and then analyzed the influence to the offset printing density.
结果，甚而区域被服从对前填水泥的化学制品在跟随挖掘的相对地短时间以后陈列了地水流入的坚固率。
As a result, even zones subjected to chemical pre-grouting exhibited a substantial rate of groundwater inflow after a relatively short time following excavation.
如果水流状态随时间变化而变化，则称为非恒定流。
If the current status change with time, intitules as the unsteady flow.
动态土壤侵蚀包括依赖于空间与时间的土壤剥离、细沟的形成、水流中过量泥沙的沉积、沉积泥沙中细沟的再生等物理过程。
Dynamic soil erosion processes involve the spatial and time dependent processes of detachment, rill formation, deposition, re rilling from deposited sediment and scouring of rills.
按时间分为两段进行拟合，最终确定了排沙量与水流量的函数关系。
As for the latter relationship by fitting in the two phases of time the function expressions of the sand discharge capacity and tonnage is gained in the end.
按时间分为两段进行拟合，最终确定了排沙量与水流量的函数关系。
As for the latter relationship, by fitting in the two phases of time, the function expressions of the sand discharge capacity and tonnage is gained in the end.
在讨论这个问题时，又考虑进了排水沟中的水位也是随时间而变化的，因此在地下水流动过程中的任一瞬时，其地下水头差也是一个变量。
In the meantime the time variation of the water level in the ditch has been taken into account, therefore the groundwater head are time-varying as the groundwater flows toward the drain system.
一个点上的水流状态，如压力、流速和流量不随时间变化而变化，称为恒定流。
The current status of one point, such as pressure, flow rate and flow don t change with time, intitules as the steady flow.
根据其时间序列，建立线性神经网络模型，并将其用于地下水流量的动态预测。
Based on the time series, a model of linear artificial neural network is set and used for dynamic prediction of discharge of groundwater.
短时间内，大部分的雨水流入下水道，即使下水道普及的地区也会发生浸水。
In recent years, even districts served by sewer lines have experienced flooding due to the sudden increase of rainwater entering local sewerage systems.
似水流年，记录时间流过的声音，欢迎常来坐坐、聊聊，记录下你自己的声音。
Timesong, record the voice of time; Welcome to Timesong and record your own voice.
利用一维不恒定水流泥沙数学模型，研究泥沙实体模型试验的时间变态问题。
An unsteady 1-d flow and sediment model is used as a tool to study the scale effect caused by time distortion in physical models of sediment transport.
利用一维不恒定水流泥沙数学模型，研究泥沙实体模型试验的时间变态问题。
An unsteady 1-d flow and sediment model is used as a tool to study the scale effect caused by time distortion in physical models of sediment transport.
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