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backrest; rear spar | |||
back beam | |||
trailing edge spar | |||
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rear spar | |||
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backrest | |||
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rear spar |
后 梁 : 58 phrases in 10 subjects |
Automobiles | 24 |
Aviation | 3 |
Bridge construction | 2 |
General | 1 |
Oil / petroleum | 1 |
Rail transport | 1 |
Rowing | 1 |
Skydiving | 1 |
Technology | 17 |
Textile industry | 7 |