actuating medium

例句：

1. 1.The actuating medium is crucial for the operation of the device.
   激励介质对于设备的运行至关重要。
2. 2. The actuating medium is responsible for transmitting signals between the sensor and the control unit.
   激励介质负责在传感器和控制单元之间传输信号。
3. 3.The actuating medium is used to create a force that can be transmitted through the system.
   激励介质用于产生一种可以通过系统传递的力。