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to phrases
drop line
el. 分出线; 用户引人线
hydroel.st. 深井井管
labor.org. 垂吊索
tech. 用具进气管; 引入线
telecom. 引人线; 下线
drop line: 33 phrases in 16 subjects
Business1
Chemistry2
Construction1
Electric machinery1
Electricity generation1
Electronics1
Engineering geology2
Hydroelectric power stations2
Information technology1
Metallurgy1
Oil / petroleum2
Space1
Technology10
Telecommunications3
Textile industry3
Wind Energy1