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正线 zhèngxiàn
bridg.constr. main line
commun., railw. main line (track)
tech. A-wire; plus line; positive line; positive wire; main track
正线【铁】 zhèngxiàn
tech. main line; main track; through line
公共交通正线 zhèngxiàn
auto. main line
正线: 619 phrases in 64 subjects
Advertising1
Agriculture7
Air defense7
Anatomy2
Animal husbandry1
Architecture3
Astronautics1
Automobiles17
Aviation15
Bridge construction12
Business17
Cables and cable production1
Chemistry1
Commerce2
Communications5
Compressors1
Computer networks1
Construction3
Corporate governance1
Cryptography1
Dermatology3
Desert science4
Drilling5
Earth sciences15
Economy5
Electric machinery11
Electronics18
Engineering geology2
Explosives and Explosive Ordnance Disposal4
Finances3
General20
Geophysics4
Hydroelectric power stations7
Hydrology2
Ice hockey1
Information technology5
International Monetary Fund4
International trade1
Management2
Marketing1
Mathematics11
Metallurgy14
Mining1
Nautical4
Navigation1
Oil / petroleum22
Otorhinolaryngology2
Polo2
Project management2
Rail transport8
Remote sensing1
Securities4
Shipbuilding2
Solar power1
Space20
Sports3
Statistics15
Steel production2
Table tennis3
Technology263
Telecommunications3
Textile industry14
United States1
Wind Energy4