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1·Measure the water pressure with two way hydraulic pressure gauge in geotechnical engineering and classify the aquifers.

土体工程中用双向水压计测量水压并划分含水层。

2·The design principle, structure characters, testing principle and method, and technique capability of hydraulic photoelectrical pressure gauge are presented.

介绍了液压型光电式测压计的设计原则、结构特征、测试原理、试验方法及其技术性能。

3·For improving automatic gauge control precision and quality of the whole strip, FMN is proposed to correct gap of the rolling by fast hydraulic pressure system.

为进一步提高带坯全长厚控精度及控制品质，依靠液压压下快速移动特性采用快速监控FMN功能。

4·A pressure relief valve from the main valve, pressure relief / holding pressure pilot valve needle valve, ball valve, micro shaped filter and pressure gauge hydraulic control over the system.

进口持压泄压阀由主阀、泄压/持压导阀针阀、 、 球阀、微形过滤器和压力表组成水力控制接管系统。

5·Presser pressure is set by hydraulic system, with pressure gauge shows.

压片的压力是由液压系统设定的，并附有压力表显示。