单词：timekeeping
timekeeping的用法和样例：
例句
- The accuracy of scientific observation and calculations always depends on the scientist's timekeeping methods.科学观测及计算的精度总是取决于科学家的计时方法。
- The steelyard clepsydra, a special type of clepsydra, had been the chief timekeeping instrument during the Sui-Tang period and the earlier stage of the Northern Song dynasty.摘要秤漏是一种特殊类型的漏刻，在隋唐及北宋前期曾是司天机构的主要计时仪器。
词汇搭配
- timekeeping procedures[经] 计时程序...
- timekeeping equipment[经] 计时设备...
- timekeeping unit[经] 计时部门, ...
- electric timekeeping device电动计时器
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