Introduction was made to the composition and working principle of a power-off time delay relay which adopts CMOS digital circuit, digital dial disc for switch setting and without auxiliary power.

介绍了一种采用CMOS数字电路、数字拨盘开关整定、无辅助电源的断电延时继电器的组成及工作原理。

youdao

Fit the dial gauge with some preload and measure the lateral runout at the greatest external diameter of the brake disc.

在带有一定预载的情况下安装百分表，然后测量制动盘最大外径处的横向跳动。

youdao

An arrange of function indicators supplement the music disc and time display on the dial.

FORBES: Luxury Music Box Wrist Watch Plays "Strangers In The Night"