This design is more complex than the other two options since the system will have to track two time intervals.

该设计比其它两个选项更复杂，因为系统将不得不跟踪两个时间区间。

youdao

And now you will understand how we define the instantaneous velocity at time t which is different from an average velocity between two time intervals.

现在明白了吗，t时刻，的瞬时速度是怎样定义的，与两时刻间的平均速度相比，瞬时速度并不一样。

youdao

In these two lenses have two years between the time intervals, it is the film shot two years ago the short films of time.

在这两个镜头之间已经有两年的时间间隔，正是本片两年前拍摄完成的那部短片的时间。

youdao

Having spent thirty years recording my time in 15 minute intervals, the concept of a project extending over two decades is mind boggling.

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If the market is in a bear cycle, try dollar cost averaging (especially for larger portfolios), but keep the time frame relatively short, no more than three months, preferably in two week intervals between buys.

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