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safety action
gen. 防〔保〕护作用
eng.geol. 安全措施; 屏蔽效应
nucl.phys. 安全动作
tech. 保证动作; 保险装置
wind. 防护作用; 保护作用; 屏蔽作用
safety action
: 7 phrases in 6 subjects
Aviation1
Bridge construction1
Electronics2
Mechanics1
Mining1
Technology1

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