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make-before-break

gen. 先接后离接点; 合断
el. 先合后开; 电路先接后离
electric. 先闭后开触点的
geophys. 先闭合后断开
oil 先接后断
space 先通后断
tech. 先闭后开
make before break
avia. 中断前完成; 先接后断; 合后
make-before-break
: 37 phrases in 12 subjects
Automobiles1
Electricity2
Electronics5
General3
Mechanics1
Metallurgy2
Oil / petroleum1
Power system protection2
Space5
Technology9
Telecommunications4
Television2