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derrick crane | |||
mast crane | |||
derrick; gin pole; gin pole derrick | |||
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derrick crane; gin pole derrick; mast crane | |||
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derrick crane | |||
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mast crane |
桅 杆 起重机 : 40 phrases in 9 subjects |
Architecture | 1 |
Bridge construction | 1 |
Electronics | 1 |
Explosives and Explosive Ordnance Disposal | 1 |
Hydroelectric power stations | 1 |
Metallurgy | 1 |
Port facilities | 1 |
Rail transport | 1 |
Technology | 32 |