The optimal design of gear parameters in the movements of clocks and watches is a combinatorial optimization problem, which is too difficult to be solved optimally using traditional optimization methods.
在钟表机芯设计中，齿轮参数的优化设计是一个组合优化问题，很难用传统优化方法解决。
A miniature horological machine tool is designed.
设计了一台小型钟表机床,通过采用“嵌入式”三维精密工作台和铰链机构、齿形同步带、变频调速器等装置,使得机床整体结构紧凑、尺寸小,而且便于协调控制。
Be three minutes out
(钟表)相差(快慢)三分钟
chronometer time plus watch time
天文钟时间加钟表时间
chronometer time minus watch time
天文钟时间减钟表时间
One who practices or is skilled in horology.
钟表专家进行钟表制造或精于钟表制造的人
dial ,clock or watch (incl. for clocks with watch movements)
钟表（包括装有表机芯的钟）表盘
horological industry
钟表[计时器]工业
hand ,clock or watch (incl. for clocks with watch movements)
钟表（包括装有表机芯的钟）的指针
The art of making timepieces.
钟表制造术制造钟表的工艺技术
indicate a certain time by striking, of clocks.
通过敲钟显示时间，指钟表。
(of a clock or watch)go slow and then stop
（指钟表）慢下来后停住.
single turn made in winding
（钟表的）上一圈发条
digital electronic chronometer
数字式电子精密钟表
He's gone to the clock hospital.
他到钟表修理店去了。
makes or repairs watches.
制造或修理钟表的人。
motion work for clocks or watches
钟表的辅助装置齿轮组
brush for watchmakers' or jewelers' lathes
钟表或珠宝车床用刷
he counted the ticks of the clock.
他计算了钟表的滴嗒声。
took the clock apart piece By piece.
一点一点地把钟表拆开