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| envelope; envelope surface | |||
| enveloping surface | |||
| enveloping plane; envelop plane | |||
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| envelope | |||
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| envelope surface | |||
| 包络面: 23 phrases in 9 subjects |
| Automobiles | 2 |
| Aviation | 3 |
| Business | 1 |
| Desert science | 1 |
| Electric machinery | 1 |
| Oil / petroleum | 1 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 12 |
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