查询词典 water pressure

Valve shall include built-in relief protection from water pressure in excess of — 75, 80, 100, or 125psi.

这种阀门应该包括内置的释放保护装置，当水压超过所设置的75， 80， 100或125psi压力值时，起到释放保护的作用。

On the basis of cavity expansion theory, the formulae of excess pore water pressure has been proposed, and the stress and strain of soil had been analyzed.

根据半无限土体中小孔扩张问题的解，分析了在超孔隙水压作用的瞬时，土体中的应力、变形等，并提出了经验公式。

The acceleration of the ground surface, excess pore water pressure ratio at GL?

加速地面，超孔隙水压力的比例在GL的？

The development mechanism of excess pore water pressure in saturated sandy silt covered by clay layer is analyzed.

分析了覆盖层下土体在地震中的超孔隙水压力发展特征机理，并探讨了影响超孔隙水压力发展的主要因素。

For single-stage pump, the packing seal combined with expeller should be utilized. And the sealing water pressure is equal to or larger than 0.2Mpa.

对于单级的渣浆泵，建议采用填料加付叶轮组合式密封，轴封水压力一般不低于0.2MPa。

The effect of grid ceiling can be reduced and the fire extinguishment efficiency can be improved by increasing the water pressure.

增大水压时，格栅时水量的分布的影响会减弱，当压力足够大时，能够接近无格栅时的灭火效率，可以保证自动喷水灭火系统在安装格栅吊顶后的灭火有效性。

An improved model, which considers the joint face and rock mass respectively at the same time, has been advised in this paper. In this model the equation is established and unified solution is made, considering the hydraulic exchange between the structure plane in normal direction and the rock mass and according to the equal water pressure of two kinds of medium.

为此，在分区的同时考虑结构面和岩块的渗透特性，并考虑结构面法向与岩块之间的水力交换，利用两类介质接触处水头相等及节点流量平衡建立新的模型。

The PVC alloy that establishs litre of company own research and development exceeds filter film to have moving low pressure low, flux is big, filter precision is tall, run feebleminded waste time, fight contaminative ability low, service life grows cost of strong, production wait for an advantage, the product has applied in numerous waterworks, individual project is the most large-scale already achieved 300 thousand tons / day.

以超滤膜为核心技术的自来水净化工艺，被业内专家誉为"第三代城市饮水净化工艺"。立升公司自主研发的PVC合金超滤膜具有运行低压低、通量大、过滤精度高、运行低能耗、抗污染能力强、生产成本低、使用寿命长等优点，产品已经在众多自来水厂应用，单项工程最大规模已达到30万吨/天。内容来自www.ch-water.com

Mobile agricultural fire pump Mobile agricultural fire pump According to the weak economic foundation of rural fire prevention facilities at this stage, based on the actual weak, the multi-functional fire-fighting facilities, agricultural economic, practical, starting from the high-pressure pump, agricultural diesel engine, fire mains Reel assembled through a fixed pulley implementation-driven, to ensure the effectiveness of fire fighting work and persistence.

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Key words : seepage force; boundary water pressure; Green theorem; piping; slope sliding; critical gradient

关键 词：渗透力；边界水压力；格林公式；管涌；滑坡；临界坡降

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％。