Such changes are all but invisible over the short time scale of modern observations, and, it is argued, they are usually obscured by innumerable gaps in the imperfect fossil record.

这些变化在现代观测短时间范围内几乎是看不见的，而且，有人认为，这些变化常常被不完善的化石记录中的无数空白所掩盖。

youdao

And its author presents his view - point different from Ambarzumian's theory and his short time scale.

接着，作者对安氐的有关理论以及他的“短时标”提出了不同的看法。

youdao

However, the temperature and precipitation fluctuations are not synchronous on a relatively short time scale.

但在短时间尺度上，温度和降水的变化并不同步。

youdao

It's going to be a challenge trying to get on with normal life - but it's 16 days for the Olympics and 12 for the Paralympics which is a short amount of time in the grand scale of things for the greatest sporting event in the world.

BBC: Karen Pickering, file pic

Although this is a small scale operation, the Iranians could turn it into a large scale one in a very short time.

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