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lottery of lotteries | |||
lottery of lotteries (一种抽签方法) | |||
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lottery of lotteries |
环 抽 : 34 phrases in 10 subjects |
Aviation | 2 |
Construction | 1 |
Electronics | 3 |
Engineering geology | 1 |
Metallurgy | 11 |
Mining | 1 |
Oil / petroleum | 4 |
Space | 2 |
Technology | 8 |
Textile industry | 1 |