| |||
centralizer | |||
centering guide | |||
centering apparatus; plumbing fork |
定心 器 : 35 phrases in 11 subjects |
Automobiles | 6 |
Aviation | 4 |
Electronics | 3 |
Explosives and Explosive Ordnance Disposal | 1 |
General | 4 |
Metallurgy | 3 |
Mining | 1 |
Oil / petroleum | 3 |
Shipbuilding | 1 |
Sports | 1 |
Technology | 8 |