clockwork

After the clockwork of the watch was cleaned the watch kept perfect time.

那块的发条装置擦干净后，走起来就非常精确了。

The sports day went like clockwork, with every race starting and finishing on time.

进展顺利，所有赛事都准时开始，准时结束。

Two-way and automatic thallic drive, energy conveys by box of two clockwork spring, motivation stores amount to 60 hours.

双向自铊驱，能量由两个发条盒传送，力储存达60小时。