Portable electric timer functions as elapsed-time indicator, interval timer and electrical apparatus on-off timer.

便携式电子计时器装有已过时间指示器，间隔计时器和电子开关计时器。

youdao

Portable electric timer functions as elapsed-time indicator, interval timer and electrical apparatus on-off timer.

便携式电子计时器装有已过时间指示器，间隔计时器和电子开关计时器。

youdao