计时

Galileo used a mercury clepsydra to time his experimental falling bodies.

直到16世纪时，迦利略还用水银漏壶为其自由落体实验计时。

It deals with the invention and development of time-keeping apparatus in our country during a historical period of some three thousand years, tracing this development from remote antiquity with its sundial and clepsydra making use of the shadow of the sun down to the Dynasties of Han, Sui, Tang and Sung with their water-powered astronomical clockworks insta...

内容论述我国古代三千年左右有关计时器的发明和发展，自远古利用日影的圭表和日晷起，中间经汉、隋、唐、宋等朝代，附装在水力天文仪器上的水力天文钟，都采用了齿轮和凸轮的传动，即已都属于机械性。

It deals with the invention and development of time-keeping apparatus in our country during a historical period of some three thousand years, tracing this development from remote antiquity with its sundial and clepsydra making use of the shadow of the sun down to the Dynasties of Han, Sui, Tang and Sung with their water-powered astronomical clockworks...

自远古利用日影的圭表和日晷起，中间经汉、隋、唐、宋等朝代，附装在水力天文仪器上的水力天文钟，都采用了齿轮和凸轮的传动，即已都属于机械性。元代郭守敬以后，到明初的詹希元，更发展到独立时钟机构，並有了指针和表盘。可是近四百年，即自明代万历年间，西洋的自鸣钟传来我国，我国在计时器方面的工作，始终在模制阶段，自己的发明遂归于停顿。那次会议闭幕以后，会中曾用英文出版一次，我国1956年12月，《天文学报》4卷2期用中文出版一次。现在根据一些新资料，重新加以增删和改正。

Today, this principle has been applied to the clock timing, counting the pulse.

今天，这项原则已应用于时钟计时、计数脉搏。

In addition to the MP3 functionality, this jacket also FM radio, alarm clock, clock, timer functions.

除了MP3功能，这件夹克还有FM 收音机、闹钟、时钟、计时器等功能。

I don't watch the clock in here, Jack.

我不计时的杰克

If possible, try to time the seizure using your watch or a clock.

如果可能的话，对痉挛的时间进行计时。

The cockroach's first decision was to set up a clocking in attendance system.

蟑螂的第一个决定是设立了打蟑螂的第一个决定是设立了打设立卡计时系统。

The cockroach\'s first decision was to set up a clocking in atttendance system.

蟑螂的第一个决定是设立打卡计时系统。

Meanwhile, it is of multiple protection function and clocking/timing function.

仪器同时具有多重保护功能和计时/定时功能。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。