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bulb | |||
glass envelope | |||
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glass bulb |
玻璃泡: 68 phrases in 16 subjects |
Architecture | 1 |
Automobiles | 2 |
Aviation | 1 |
Chemistry | 3 |
Construction | 1 |
Electronics | 3 |
General | 1 |
Metallurgy | 4 |
Nautical | 1 |
Oil / petroleum | 2 |
Plastics | 1 |
Polymers | 1 |
Shipbuilding | 2 |
Space | 1 |
Technology | 42 |
Wind Energy | 2 |