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self-action

['self'ækʃ(ə)n]
gen. 自动作用; 自作用
dril. 自动的
oil 自作用
tech. 自动
self-action
: 28 phrases in 10 subjects
Aviation1
Chemistry1
Electronics2
Metallurgy1
Oil / petroleum6
Plastics1
Reproductive biology1
Sealing2
Technology11
United Nations2