计时 reckon by time; timing; chronography 这个表计时相当精确。 the watch is an excellent timekeeper. 工厂计时员记录工时。 the factory timekeeper keeps account of the hours of work done.; 计时工资 payment by the hour;hourly wages; time wages; 计时工资制 time-rate system; 计时工作 timework; 计时卡片 timing sheet; 计时开关 time switch; counter switch; 计时员 timist; 计时钟 time clock