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waterproof door chamber
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waterproof door chamber
Encyclopedia
工学
硐室
释
waterproof door chamber
防水门硐室
为防止井下涌水淹没矿井,在井下关键巷道或主水泵房联络道中设置防水门来隔绝水流的硐室。
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union cataloging
union catalogue
union catalogue of chinese Ancient Series
union catalogue of chinese Local Chronicles
union-closed set
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union cloth
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Union Démocratique du Peuple Malien
Union for Democracy and Social Progress
Union for the Republic (Mauritania)
union ideal
Union Internationale des Chemins de fer
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union-intersection
unionized
union matroid
Union Medical College
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Union Nationale Camerounaise
Union Of African Railways
Union of African Railways
Union of American Hebrew Congregations
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