Clay makes the soil hard to work when wet and it cracks when dry.
粘土遇湿使土壤无法耕作，遇旱使土壤发生龟裂。
Cobalt (II) chloride is deep blue when dry (anhydrous) and pink when moist (hydrated).
钴(II)氯化物在无水状态时呈深蓝色时，吸湿后呈粉红色。
It was observed that iron salts with lower decomposition temperatures exhibit higher activity when dry mixing method was used for preparation.
观察到在干混法制备催化剂时，所用铁盐分解温度越低活性越高。
It was observed that iron salts with lower decomposition temperatures exhibit higher activity when dry mixing method was used for preparation.
观察到在干混法制备催化剂时，所用铁盐分解温度越低活性越高。
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