The main task of a metering system is to get information reliably into and out of meters-for example, how much power is being used, when and at what price.

计量系统的主要任务是可靠地从表计从获得、并向表计输出信息，例如正在使用的电量、时间以及价格的信息。

youdao

The results show that the frequency and phase position of frequency converter output power are out of phase with that of supply power, which is the main reason leading to metering system breakdown.

分析结果认为：变频器输出电源的频率和相位与供电电源频率和相位不同步是造成计量系统产生故障的主要原因。

youdao

To accomplish this action, the carburetor has some type of power system used to supplement the main-metering system.

要完成这样的工况，化油器要求有大负荷加浓装置为主供油装置作补充。

youdao