Time transfer by laser is the most precise one in several time comparison methods.
激光时间传递技术是目前几种时间比对技术中精度最高的一种。
Although there are several time lapses in Lewis's journal entries, the expedition's records are a national treasure.
现在根据刘易斯当时的日记我们知道在探险过程中出现过几次失误，但整个探险记录仍然可以被成为“国家宝藏”。
There was no change of circulating neutrophil counts before treatment and at several time point of posttreatment.
外周血循环中中性粒细胞数在用药前和各时间点没有显著变化。
The analytical procedure consists of earthquake stage and post-earthquake stage, and each stage is subdivided into several time steps.
整个计算过程分为地震阶段和震后阶段，每个阶段再划分若干时段。
On the charts, we will be watching to see if the USD index can break into its daily cloud, which it tested several time this past week.
从图表上看，要关注美指是否能进入日图云图内部，上一周曾几次试探云图内部。
In this paper, several time domain waveforms of vibration signal and its identification method in mechanical fault diagnosis are analysed.
本文主要论述了机械故障诊断中，几类振动信号时域波形的分析与识别方法。
CONCLUSIONS: the dissolution of TCRC in above medium were different only in a several time points, but there was no difference in the total cumulative dissolution.
结论：TCRC在不同介质中的累积释放度只在几个时间点有差异，而总的释放度无差异。
Users can view the current local time in several time zones around the world at the same time. Users can also quickly search for the current local time in an individual time zone.
用户同样可以在单独的时区内快速的搜索当前本地时间。
The way to determine the suitable time and space interval is put forward by investigating the variation of gas pressure gradient on wall with several time and space intervals.
通过考察选取不同时间步长和空间步长时煤壁瓦斯压力梯度的变化，提出了选取合适的时间步长和空间步长的方法。
It would have been better to have thinned the trees over several winters rather than all at one time.
当初要是分几个冬天来疏剪树木，会比一次性疏剪要更好些。
It is difficult to understand how reduced predation would lead to sudden increases in Acanthaster numbers in several places at the same time in specific years.
很难理解捕食减少是如何导致在特定年份的同一时间内，几个地方的棘冠海星数量突然增加。
The club grew quickly and when it reached 180 members and the kids in the program won several state championships, she decided to devote all her time to cultivating and developing it.
这个俱乐部发展迅速，成员人数达到180名，参加项目的孩子们赢得了几个州冠军，在这之后，她决定把自己所有的时间都用来培养和发展俱乐部。
It goes back to a long time in my life, but most immediately relevant to my own graduate career, which I went to several different schools.
它可以追溯到我生命中的很长一段时间，但与我自己的研究生生涯最直接相关的是，我去了几所不同的学校。
It will save considerable machining time to use more than one tool in one machine to perform several machine operations either in sequence or simultaneously.
在一台机器上使用数种刀具来顺次或同时进行几项机器操作，将节省大量加工时间。
It is a term for the Japanese words for "megaphone" and "translate", which actually makes g lot of sense because it's a megaphone that can translate Japanese into several other languages in real time.
它是日语中“扩音器”和“翻译”的意思，这其实很有道理，因为它是一种可以实时将日语翻译成其他几种语言的扩音器。
Sue, on the other hand, had a more difficult time satisfying her first client and she took several additional months to actually complete the assignment.
另一方面，苏在满足她第一个客户时遇到了更大的困难，她又额外花了几个月的时间才真正完成任务。
Because the train was scheduled to arrive in Miami, Florida, several hours before the sailing, we didn't think we'd have any reason to worry about getting to the dock on time.
因为火车预期在启航前几个小时到达佛罗里达州的迈阿密，所以我们觉得没有理由担心是否能准时到达码头。
Cecilia Beaux was born in 1854, and after learning to paint and studying with several important artists of the time, Beaux became known as one of the best portrait painters in the United States.
塞西莉亚·博克斯出生于1854年，在学习绘画并师从当时几位重要的艺术家后，博克斯成为美国最佳肖像画家之一。
They range from a few days for small lakes up to several hundred years for large ones; Lake Tahoe, in California, has a residence time of 700 years.
它们从小湖的几天到大湖的几百年不等；加州的太浩湖有700年的滞留时间。
Although it dates from several hundred years after the building of the pyramids, its sophistication suggests that the Egyptians might have been developing ideas of flight for a long time.
尽管它的历史可以追溯到金字塔建造后的几百年，但它的复杂程度表明，埃及人可能很长一段时间以来一直在思考飞行的想法。
What does the author say about people now working for several businesses at the same time?
关于现在同时为几家公司工作的人，作者说了什么？
At the same time, the European Union, Spain, Britain and several other countries have all seriously contemplated digital services taxes.
与此同时，欧盟、西班牙、英国和其他一些国家都在认真考虑征收数字服务税。
About 8% said they used the Internet as a way to escape problems, and almost 14% reported they found it hard to stay away from the Internet for several days at a time.
大约8%的人说他们把互联网作为逃避问题的一种方式，近14%的人说发现他们很难一次离开互联网好几天。
About 8% said they used the Internet as a way to escape problems, and almost 14% reported they "found it hard to stay away from the Internet for several days at a time.
大约8%的人说他们用互联网作为逃避问题的一种方式，几乎14%的人说发现他们“很难一次离开互联网好几天”。
Students need to ask for a leave ahead of time if they can't go to school for several days.
如果学生几天不能来上课，他们需要提前请假。
Indeed, several refineries in Japan have stopped operations, but crude prices have tumbled below $100 a barrel for the first time in more than a week.
事实上，日本的几家炼油厂已经停止运营，但一周多以来原油价格却首次跌至每桶100美元。
He wrote several popular science books, including the bestseller A Brief History of Time which made him a household name.
他写了几本科普书籍，其中畅销书《时间简史》使他家喻户晓。
Several years ago, researchers made a couple of surveys on how people spent their free time.
几年前，研究人员做了一些关于人们如何度过闲暇时间的调查。
Several years ago, researchers made a couple of surveys on how people spent their free time.
几年前，研究人员做了一些关于人们如何度过闲暇时间的调查。
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