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load barrel |
索筒 : 31 phrases in 12 subjects |
Acridology | 1 |
Drilling | 2 |
Engineering geology | 1 |
Explosives and Explosive Ordnance Disposal | 2 |
General | 1 |
Mechanics | 1 |
Navigation | 1 |
Oil / petroleum | 2 |
Shipbuilding | 1 |
Technology | 17 |
Textile industry | 1 |
Transport | 1 |