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down line

commun., railw. 下行线
scient. 铁路用语沿下行线
tech. 脚线; 下行 (线); 沿铁路线; 下游管线
telecom. 下行线路
transp. 上下行铁路线
Down-Line
: 42 phrases in 17 subjects
Agriculture1
Bridge construction1
Drilling1
Electric machinery1
Electronics1
General6
Informal2
Information technology1
Metallurgy1
Oil / petroleum3
Polo1
Rail transport2
Scientific5
Table tennis2
Technology5
Telecommunications4
Tennis5

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