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primary element
auto.	主初级，基本，感受元件; 测量机构
chem.	初级反应电池
food.serv.	宏量营养素; 宏量元素
met.	原电池
oil	初级电池; 基本元件; 一次元件; 主要元素
space	主［初级］元件
tech.	原生要素; 热敏元件; 感温元件; 检测元件
primary elements
bridg.constr.	首要要点
English thesaurus
primary element
metrol.	The primary element of a measuring chain which converts the input variable into a signal suitable for measurement

primary element: 19 phrases in 6 subjects

Automated equipment	1
Aviation	1
Electronics	3
Genetics	1
Space	3
Technology	10