| |||
surveying compass; surveyor's compass | |||
compass | |||
magnetic compass | |||
boat compass; box compass |
罗盘仪 : 54 phrases in 10 subjects |
Agriculture | 4 |
Architecture | 2 |
Computer numerical control | 1 |
Earth sciences | 1 |
Engineering geology | 4 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 4 |
Oil / petroleum | 2 |
Space | 2 |
Technology | 33 |