... stemming cartridge 封泥卷 stemming materials 填塞物 stemming ratio 封堵率 ...
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stemming materials
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以上为机器翻译结果，长、整句建议使用 人工翻译 。
The Dutch controls, stemming from European Union legislation that requires a permit to be issued for the export of dual-use materials, remain in force.
ECONOMIST: The saga over research into bird flu reaches a climax
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