免费专业英语词汇下载 ... 迷宫式密封 seal， labyrinth 自中心密封 seal， self-centering 真空密封 seal， vacuum ...
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seal of ruler
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以上为机器翻译结果，长、整句建议使用 人工翻译 。
In a gesture of friendship, President Chirac presented his Algerian counterpart with the silver seal of the last ruler of Algiers, taken by French forces in 1830.
BBC: Chirac 'deserves Nobel Peace Prize'
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