词汇	pulsating wave
释义	pulsating wave 脉动波
随便看	maintain duration maintain duty to parents maintaine maintained maintained command maintained contact maintained contact switch maintained discharge maintained emergency lighting Maintained hemodialysis maintained hypothesis maintained illuminance maintained lift maintained load test maintained markup maintained run maintained school maintained schools maintained switch maintained time relay maintained treatment maintained tuning fork maintain emphatically maintainence Maintainence of Telephone Dialing Circuit