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clear opening | |||
clearing section; inner cross-section; net section | |||
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clear section | |||
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finished cross-section | |||
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net section | |||
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clear opening |
净 断 面 : 15 phrases in 5 subjects |
Chemistry | 1 |
Electronics | 1 |
Hydroelectric power stations | 2 |
Plastics | 1 |
Technology | 10 |