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二次型; 二次形式; 二次曲锥面的 | |||
二次曲面 | |||
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二次; 二次曲面 (drquadrus) | |||
二次的; 二次曲面的 |
quadric : 64 phrases in 8 subjects |
Business | 5 |
Construction | 2 |
Explosives and Explosive Ordnance Disposal | 1 |
Hydroelectric power stations | 2 |
Mathematics | 5 |
Oil / petroleum | 2 |
Shipbuilding | 1 |
Technology | 46 |