The extremely arid desert climate is the best preserver of murals.

极端干燥的沙漠气候是壁画的最好保存者。

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Surrounded by a desert, Dunhuang has an extremely arid climate and a very fragile ecosystem.

由于地处沙漠中央，敦皇的气候极其干旱，生态系统也非常脆弱。

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The area has favourable regional metallogenic setting for sandstone uranium deposit. i. e uranium-rich basement, with arid to semiarid climate and desert to semiarid morphologic .

该区从区域上具有富铀基底、干旱—半干旱、沙漠—半沙漠的现代气候与地貌条件。

youdao

The researchers say the toolmakers at Jebel Faya may have reached the Arabian Peninsula at a time when changes in the climate were transforming it from arid desert into a grassland habitat with lakes and rivers.

BBC: Humans 'left Africa much earlier'