metered system

• 计量系统

metered system的用法和样例：

例句

1. We check the calibration and reactor system of measurement.
   我们检查并校准了反应釜计量系统。
2. A nearly constant air-fuel ratio is maintained by the main metering system from part-to-wide-open throttle.
   从节气门部分开启到全部开启，主计量系统保证了空燃混合比几乎恒定。