英语语法分析

A mercury manometer could cause a pollution hazard.

水银压力表可能产生污染破坏。

It is equipped with manometer, pressure reducer and flow indicator.

其上装有压力表、减压器和流量表。

Calculate out total uncertain degree and degree of freedom of the manometer.

计算出压力表的总的不确定度和自由度。