When is closing time的意思|示意

When historians look back at the era that is now closing, they will see a time of private achievement and public disappointment.

当历史学家们回顾现在这正在逝去的时代时，他们将看到是一个私人成就和公众失望的时代。

Output speed of electric installations on the determination of its opening and closing the valve when the time is not strictly required, should try to use a slower speed.

关于对电动装置输出转速的确定，在阀门对其启闭时间没有严格要求时，应尽量选用较慢的速度。

The geometry of closing is merely scientific jargon for the fact that when the hand closes to form a fist, all fingers touch the palm of the hand at the same time.

“闭合几何学”是科学界的行话，指当手握成于一个拳头时，所有指头都同时抵达手掌心。