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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
★ 微迹元素; ★ 超微量元素
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
: 30 phrases in 13 subjects
Animal husbandry1
Business1
Chemistry2
Desert science3
Earth sciences1
Ecology1
General1
Geology1
Metallurgy1
Oceanography & oceanology2
Pharmacology4
Plastics1
Technology11

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