| |||
derrick crane | |||
mast crane | |||
derrick; gin pole; gin pole derrick | |||
| |||
derrick crane; gin pole derrick; mast crane | |||
| |||
derrick crane | |||
| |||
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 |