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effective length
auto. 有效计算长度
met. 有效长度; 计算长度
railw. 有效长; 有效长度
tech. 有效长 (度); 资用长度
effective length
: 102 phrases in 27 subjects
Agriculture1
Air defense1
Automobiles5
Aviation2
Bridge construction16
Communications1
Earth sciences2
Ecology1
Electric machinery4
Electronics4
Engineering geology2
General1
Geophysics2
Hydroelectric power stations1
Information technology1
Mechanics1
Metallurgy5
Mining1
Oil / petroleum3
Plastics1
Polymers4
Rail transport3
Shipbuilding2
Space1
Technology34
Textile industry2
Wind Energy1

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