查询词典 hydropower

Through careful analysis of the mathematics model of daily dispatching optimization of the cascade hydropower station, a new method based on the combination of two dimensional dynamic programming and discrete differential dynamic programming is proposed.

通过仔细分析梯级水库日优化调度的数学模型，提出了一种基于二维动态规划和离散微分动态规划相结合的混合求解策略，该策略理论上严谨，计算时间比较短，能满足日常调度的需要。

Along with the a enhancing proportion of hydroelectricity in the whole electricity system in our country, the increase of the single unit capacity, the faults ratio of the large-scale hydropower units is more and more important to the whole system safe operation, if we don"t manage it well, it will cause the collapse of the whole system and bring a great loss of country"s economy, hi addition, accompany with " To dispart plant and grid, connect to the grid according to the price"put into practice, how to control the production cost of the power plant has to be put into consideration.

随着我国水电在系统中所占比重的增加及单机容量的增大，大型水电站和机组的故障率对系统的安全运行也越来越重要，如果处理不好，甚至会引起整个系统的崩溃，给国家带来巨大的损失。

With Gongboxia Hydropower Station on the Yellow River taken as an example,some related problems were discussed,including the key points on the shape optimization of horizontal and vertical rotary internal energy dissipator,t.

以黄河公伯峡水电站为例，论述了竖井旋流式与水平旋流式内消能工在体型优化中的重点与方向问题；泄流能力的协调与匹配问题；通气孔的设计、消能率的构成、空化空蚀、衬砌标准与范围、下游水深的影响等问题。

As the topographic condition is limited,the conventional energy dissipating mode can not meet the relevant requirements of Shagou Hydropower Station ,a tank-type energy dissipator is suggested to be used there;for which,there is no existed experiences for the desi.

沙沟水电站受地形条件限制，采用常规的消能方式满足不了要求，故采用箱式半压力消能工。

According to Ecuadorian President Rafael Correa, the project would become Ecuador's largest hydropower plant and help the country meet 75% of its power supply needs.

据厄瓜多尔总统拉斐尔科雷亚称，这个项目将成为厄瓜多尔最大的水电厂，能提供全国所需全部供电量的75%。

The temperature field and thermal stress on the spiral casing structure of large\|sized hydropower station are analyzed by the finite element method in this paper. The method to define the coefficient of elastic resistance on rock is presented.

应用有限元方法分析了某大型水电站地下厂房中蜗壳结构的温度场和温度应力，阐述了围岩弹性抗力系数的确定方法，得出了混凝土截面的切向正应力。

By use of the properties of ergodicity, randomicity, and regularity of chaos, a chaos genetic algorithm based float encoding is proposed to solve optimal operation of hydropower reservoir.

4利用混沌运动的遍历性、随机性和规律性等特点，提出了一种求解水电站水库优化调度问题的基于浮点数编码的混沌遗传算法。

Precipitation is not only an essential parameter in hydrology and in the research of water resources, but also important for the flood control of the valley and the preparation against it, as well as the construction of hydraulic and hydropower engineering.

降雨量不仅是水文和水资源研究中的一个重要参数，而且对于流域的防洪减灾和水利水电工程建设也具有重要的意义。

The small hydropower, a kind of clean energy, is an essential part of the strategy for China's sustainable development.

小水电属于清洁能源，是我国实施可持续发展战略不可缺少的组成部分。

At present there are not yet cleaning equipments of advanced floater in hydropower stations.

目前，尚未清洗设备先进的浮在水电站。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。