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basic flow patterns in 3 types of suction boxes are studied respectively by both numerical calculation and model test, and the essential hydraulic indexes are listed. the boxes, including elbow inlet, bell-like inlet and dustpan-like inlet, are usually applied for vertical pump of low head.

采用数值计算和模型试验的方法分别研究了低扬程立式泵装置常用的肘形钟形和簸箕形等三种形式进水流道的基本流态，给出了表达这三种形式进水流道水力性能的主要指标。

In this paper, according to the analysis of fluid supply pipe workhydraulic condition, using the graph theory basic loop, KCL and KVLand Bernoulli equation established hydraulic power work conditionmathematic model, settled the derivation of the mathematicmodel.

本文通过对流体输配管网的水力工况的分析，利用图论的基本回路法，基尔霍夫定律和伯努利方程建立了水力工况的数学模型，确定了求解数学模型的算法。

A hydraulic computation equation for water distribution sytem of counterflow type natural draft cooling tower has been established by applying Bernoulli Equation.

运用伯努利方程建立了逆流式自然通风冷却塔配水的水力计算方程。

Hydraulic turbines ; silt-laden water flow ; two phase flow ; Bernoulli equation ; operating parameter

水轮机；含沙水流；二相流动；伯努利方程；工作参数

To measure the external characteristics of hydraulic coupler by the controlled dynamic regenerated loading up method;2. The external characteristics of a biconical hydrocyclone used for waste water treatment are studied on the device.

为了检验新型污水处理系统设备的除油性能，设计建造了一套室内双锥型水力旋流器试验装置，并在该装置上进行了旋流器的外特性试验。

Based on the calculation results,the effects of bifurcate structure on local flow and hydraulic loss are summarized.

根据计算结果，总结了各种多通接头的分叉结构对局部流动状态和水力损失的影响，分析了最优模型。

This paper studies the structure and function of remote monitoring system about Billet Caster's hydraulic crystallizer.

本文介绍了方坯连铸机结晶器液压振动控制系统及监测系统的组成和功能。

Entered the service of the Duke of Hannover; worked on hydraulic presses, windmills, lamps, submarines, clocks, carriages, water pumps, the binary number system

1676年，进入了汉诺威公爵服务；在液压机，风车，灯具，潜艇，钟表，车辆，水泵，二进制数系统工作

Company specializing in the new hydraulic-free burn brick, concrete block machine design and manufacturing.

公司专业从事新型液压免烧制砖机、砌块机的设计与制造。

Of hydraulic valve design uses three-dimensional map in the form of greatly increased the valve block design quality and speed design.

液压阀块的设计使用了三维立体图的形式，大大提高了阀块的设计质量和设计速度

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％。