某些脉冲星发送脉冲比地球上最精确的时钟都准时。Some pulsars keep time better than the earth's most accurate clocks.脉冲通常以微秒计。The pulse is usually timed in micro-seconds.光化学反应使光变为电脉冲。The photochemical reactions transform the light into elect...
Two notable regulatory changes resulted from enactment of Pub. L . 96 - 295.在颁布的《公法》96—295条中,有两项改动引起人们的注意.The game is a simple, playful enactment of a horrible scene that might occur in accidents.该游戏玩法简单 、 逼真,演绎了事故发生的紧张场...
Another need for abstract enumeration arose.对抽象的计数法产生了另一方面的需要.Other enumeration problems lead us to the study of orbits of permutation groups.其它的计数问题引导我们去研究置换群的轨道.Enumeration system processes, can cite the system is curr...