我基本上知道答案，气温是一条嘈杂的时间序列，所以如果你在一下相对较短的时间跨度里挑选数据，你可以得到任何你想要的结果。
I basically know the answer: temperature is a noisy time series, so if you pick and choose your dates over a short time span you can usually make whatever case you want.
了解特定的时刻或是某个局部时间片段将非常有用，但是如果能够表达一段时间跨度的话，通常也很有用。
Knowing about a particular instant or partial time snippet can be useful, but it's also often useful to be able to express spans of time.
可以在以下情况使用Interval：需要表示在时间连续区间中以特定的点开始和结束的一段时间跨度。
You use an Interval when it is important to express a span of time that begins and ends with definite points in the time continuum.
Interval为半开区间，这表示由Interval封装的时间跨度包括这段时间的起始时刻，但是不包含结束时刻。
The Interval is half-open, meaning that the span of time encapsulated by the Interval includes the beginning of the span but excludes the end.
系统实现了时间跨度为10纳秒到100秒的10 个时间数量级的数据采样。
The system accomplished data acquisition over a 10th order time span, from 10 ns to 100 s.
站在我们司空见惯的时间观之外，开始考虑一个更深一层的时间跨度。
To step outside our quotidian experience of time and to start to consider a deeper timescale.
获取或设置一个时间跨度，此时间之后发起方续订用于安全会话的密钥。
Gets or sets the time span after which the initiator renews the key for the security session.
可以使用时间线图筛选所选时间跨度的视图。
You can use the timeline graph to filter the view to a selected time span.
两个汽车设计周期的时间跨度不少于七年，这就意味着克莱斯勒还将持续困顿好长一段时间，至少从财务的角度讲是这样的。
Of course, two automotive design cycles translate into at least seven years. So that means Chrysler is going to go "dark" on us for a while, at least from a financial standpoint.
持续时间的时间跨度，定义为一定数量的蜱一段时间的单位。
A duration consists of a span of time, defined as some number of ticks of some time unit.
科学家研究了过去5亿年间地球上发生的所谓的“灭绝事件”，时间跨度是先前任何一项研究的两倍。此次研究证实大灭绝的出现是有时间规律的。
Research into so-called 'extinction events' for our planet over the past 500 million years - twice as long as any previous studies - has proved that they crop up with metronomic regularity.
科学家研究了过去5亿年间地球上发生的所谓的“灭绝事件”，时间跨度是先前任何一项研究的两倍。此次研究证实大灭绝的出现是有时间规律的。
Research into so-called 'extinction events' for our planet over the past 500 million years - twice as long as any previous studies - has proved that they crop up with metronomic regularity.
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