vacuum meter

基本解释

Save electrical power… ---- It can make this with a buffering air tank equipped with vacuum meter. (It depends on the actual circumstance)
节约电能源——由一个缓冲储气罐，配上真空表的控制就可以节约能源。（根据用户的实际情况）
www.sha-xlj.com
The micro-computer controlled and modular designed host circuit can be used to construct a multi-gauge vacuum meter or other kinds of vacuum meters.
主机结构采用微机控制和真空计模块化设计，可构成复合真空计或用于组装其他真空计。
Described are the composition, features of the vacuum braking system and air braking system for meter-gauge passenger cars exported to Bengal, as well as the switching between the two systems.
介绍了出口孟加拉米轨客车空气制动系统和真空制动系统的组成、特点及两系统之间的转换。