That stands for average between time t1 and time t2.
来表示t1和t2间的，均值。
There is only one change in sign (between Time 1 and Time 2), so both projects have a unique IRR.
这里只有一次符号变化(在Time1和Time2之间)所以两个项目都有唯一的IRR。
For larger or specialized projects, the relationship between time and people can be even more indirect.
对于很大的和专门的项目，人员和时间的关系甚至更加非线性。
But one thing that has diverted me all across the country is the relationship between time and distance.
但是有一件事情使我在横跨全国的过程中分了心，那就是时间与距离的关系。
So yes, it is highly likely that there is a direct connection between time spent outside and preventing myopia.
户外活动时间和近视预防之间存在高度相关。
If you would like more details about converting between time zones, see Resources for an article describing the ISO 8601 standard.
如果希望进一步了解时区转换，请参阅参考资料中给出的描述ISO 8601标准的文章。
Ten years ago, he painted 24 paintings in 24 hours in an attempt "to question the relationship between time and artistic integrity".
十年前他在24小时以内画了24幅画试图“质疑时间和艺术的真实性之间的关系”。
Now, I would think that it is reasonable to ask the following question: What is the average velocity, for instance, between time zero and time four?
现在，我认为,提出如下问题,是十分合理的：,比如说，平均速度是多少，在0到4秒之间？
The average acceleration 2 between time t1 and time t2 2 would then be the velocity at time t2 minus the velocity at time t1, divided by t2 minus t1.
在t1和t2之间的，这段平均加速度2，等于t2时刻的速度2，减去t 1时速度，再除以。
Update with a period clause implies that all rows between time period value1 to value2 must be updated and can be used to apply the update to the specific business time period.
包含一个周期子句的UPDATE意味着，value1到value2的时间段内的所有行必须更新，可用于将更新应用到特定的业务时间段。
For new couples especially, finding a balance between time together and time apart, as well as how much your partner's interests become your own, is essential for a healthy relationship.
特别对于新婚夫妇，健康的夫妻关系，需要平衡双方在一起和分开的时间，以及让自己喜欢上多少配偶的兴趣爱好。
Deeply apprehensive about the merger between time Warner and AOL in 2001, Mr Fernandes left Warner Music soon after the disastrous deal was finalised, cashing in his shares just in time.
时代华纳和美国在线服务公司在2001年的合并令他深感不安。因此，在这一灾难性并购成为现实后他即刻就离开了华纳公司，并及时将自己的股份变现。
I'm in an in-between time now — between being nothing and something, but I don't let it get me down.i live happy in the present, but I don't forget the future because right now, it's all I have.
但我没有心灰意懒。我现在生活得很快活，但我没有忘记将来，因为目前我惟一拥有的就是将来。
There is a direct correlation between time spent on-boarding and the value of the meeting - the more time users spend in pre-event training, the fewer technical issues arise during the actual event.
入职培训时间和会议价值有直接关系——用户花费在会前培训的时间越多，实际活动期间产生的问题也就越少。
I spent a lot of time in the early Eighties travelling between Waco and El Paso.
在八十年代早期，我花了很多时间往返于韦科和埃尔帕索之间。
There is a long time lag between when I do the work and when I get paid.
我做工作和领薪水之间相隔很长一段时间。
Increase the amount of time you spend exercising by walking between 15 and 20 minutes.
步行15到20分钟来增加你用于运动的时间。
Besides suggesting that the agency reduces the time between approving experiments and sending them into space, it also recommended setting clearer research priorities.
除了建议该机构缩短批准实验和将实验送入太空之间的时间，它还建议制定更为明确的研究重点。
The law is caused by the relationship between our experience of time and the amount of information our minds process.
这个规律是由我们对时间的体验和我们大脑所处理的信息量之间的关系所引起的。
In our own time, the opposition between 'descriptivists' and 'prescriptivists' has often become extreme, with both sides painting unreal pictures of the other.
在我们这个时代，“描写主义者”和“规定主义者”之间的对立常常变得极端，双方都在描绘对方不真实的一面。
Maybe it's just a question of how to manage your time you should think how you could divide your time between studying and hobbies.
也许这只是一个如何管理你时间的问题，你应该考虑如何将你的时间分配在学习和兴趣爱好之间。
External recovery refers to actions that take place outside of work—e.g. in the free time between the work days, and during weekends, holidays or vacations.
外部恢复指的是工作日之间、在周末、节假日或假期期间发生的工作以外的行为。
Interglacial periods are, typically periods of time between Ice Ages, when the climate warms, and the glacial ice retreats for a time, before things cool off again and another Ice Age begins.
间冰期通常是在冰期之间的一段时间，这时气候变暖，冰川的冰会暂时消退，直到气候再次变冷，下一个冰期开始。
Before putting away the guitar or stopping your dance lessons, you should think how you could divide your time between studying and hobbies.
在放下吉他或停止上你的舞蹈课之前，你应该考虑如何在学习和爱好之间分配你的时间。
Big name schools are not necessarily the best places for professors; plus, many professors split teaching time between multiple colleges and/or universities.
名牌学校不一定是教授们的最佳选择；并且，许多教授在多个学院和/或大学之间分割教学时间。
The issue is not development time, but rather the full time between project inception and delivery.
这个问题不是开发时间，而是从项目开始到交付的全部时间。
The general divided his time between his shabby offices and his home in Hampstead.
将军的时间一部分在他那破旧的办公室里度过，另一部分在他汉普斯特德的家度过。
There's a time lag between infection with HIV and developing AIDS.
从感染艾滋病病毒到发展成为艾滋病病人有一定的时间间隔。
There is a time-lag between theoretical research and practical applications.
理论研究和实际应用之间存在时滞。
Between working full-time and taking care of the kids, he didn't have much time for hobbies.
他一边全职工作一边又要照顾孩子，所以抽不出很多时间搞业余爱好。
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