the time scale: Variability and change are regarded as two facets of the same phenomenon.

时间框架:差异和变化被认为是同一现象的两面。

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Evidence of abrupt change — on a geological time scale — wrought by human hands would seem to be overwhelming.

人类造成的突变(以地质时期为尺度衡量)，其证据触目惊心。

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Solar radiation data gained from routine meteorology observation are of extraordinary significance to the climate change research because of its long time scale and wide geography scope.

常规气象观测所获得的日射资料由于其时间尺度长，地理覆盖范围广，因此对气候变化的研究，具有特别的意义。

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However, the statement said that "given the current scale of organisational change, Dr Flanagan feels that the appropriate time to take this step is now".

BBC: Northern Health Trust boss Sean Donaghy to step aside