The Lower Triassic is of fluvial lacustrine facies with red bed features and notably different from its underlying Upper Permian Linxi Formation.

这套地层为具有红层性质的河—湖环境产物，与下伏上二叠统林西组沉积有较大的差异。

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Not only is the product easy to use it's also easy on the natural nail as well, ensuring that no damage is done to the underlying nail bed.

这款产品不但容易使用，也易用于自然甲上，确保对基础甲床没有损伤。

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But Mr Putin's casually thuggish comment, and the fuss that the deal has caused, point to an underlying problem for businesspeople: should a responsible company climb into bed with a dodgy one?

ECONOMIST: Doing deals in Russia