英德
有道
百度
谷歌
图片
维基
百科
压力差
pressure difference
delivery head
delivery head
- 本文从锅炉供水点、泵的选择上,介绍应注意的几个问题,同时要考虑管网系统压力差。
This essay introduces the notice about feed water of the boiler and election of the water pump, Look about pressure defference of the tube network yet. - 沿循环回路高度,介质下降和上升系统中因密度不同形成压力差,用以克服回路的总流动阻力。
Along height of circulation loop, pressure difference may occur in system of medium decline and rising, which can be used to conquer overall flowing resistance of circulation loop. - 活塞式压缩机一般都采用“自动阀”，就是气阀的开启与关闭是依靠阀片两边的压力差实现的，没有其它的驱动机构。
Piston-type compressors typically use the "automatic valve" that the air valve is opened and closed valves on the pressure on both sides to achieve poor, and there is no other drive.
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