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trace element
agric. 痕量元素
environ. 痕 〔微〕量元素; 微〔痕〕量元素
hydroel.st. 微量元素
sport., med. 痕迹量
tech. 分散元素
trace element Any of various chemical elements that occur in very small amounts in organisms and are essential for many physiological and biochemical processes
environ. 微量元素 (任何在生物体中出现的数量很少的、但对于很多生理和生化过程必不可少的不同的化学元素。)
trace element: 27 phrases in 12 subjects
Animal husbandry1
Business1
Chemistry1
Desert science3
Earth sciences1
Ecology1
General1
Geology1
Metallurgy1
Pharmacology4
Plastics1
Technology11

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