定时开关 dìngshíkāiguān time switch Origin Definitions Defs Strokes Stroke Words Sentences Sents 定时 定時 dìngshí noun timed Equipped with a timer or set to go off at a certain time, as with an alarm clock or explosive device开关 開關 kāiguān noun switch power switch; mechanical device used to turn electricity, gas, or water on and off