metering injector

• 计量喷油器

metering injector的用法和样例：

例句

1. In a piezo inline injector, the actuator is built into the injector body very close to the jet needle.
   在压电直列喷油器，驱动器内置在喷油器体非常接近射流针。
2. It provices pulses of a set duration, so that the injector valve opens and closes, or pulses, very quickly.
   喷油器提供脉冲宽度，使喷油器阀门打开和关闭。