actuates

v.

put in motion or move to act

"actuate the circuits"

同义词：triptriggeractivateset offspark offsparktrigger offtouch off

give an incentive for action

同义词：motivatepropelmovepromptincite

1. The engineer actuates the system with a single switch.
   工程师用一个开关启动了系统。
2. A thermostat actuates the heating system when the temperature drops.
   当温度下降时，恒温器启动加热系统。