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单词 θ71539
释义
the world > matter > chemistry > chemical substances > [noun] > chemicals (10)
chemical1649

A distinct substance or compound, esp. one which has been chemically prepared or purified. Frequently in plural.

Subcategories:

— chemicals used in agriculture (3)
— others (4)
— mixture of chemicals (2)
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更新时间:2024/12/23 23:41:00