无压 meaning in Chinese

non pressure
nonpressure

Unconfined seepage analysis with composite element method
无压渗流分析的复合单元法
On non - impact printing technology and electrostatic printing
无压印刷技术与静电印刷
Pressureless discharge of rinsing water to water drain
洗水无压排放到废水排放管道。
Three - product dense - medium cyclone of coal with gravity feed
煤用无压给料三产品重介质旋流器
A new method for unconfined seepage
求解三维无压渗流场的一种新方法

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