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waterproof door chamber
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waterproof door chamber
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硐室
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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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Grace Guei
Grace Kelly
Grace Louise McCann Morley
grace period clause
Grace's apolarity theorem
Gracicla Iturbide
Gracilaria
Gracilaria genera
gracile Australopithecus
gracile nucleus
gracile shrew mole
Graciliano Ramos
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gradable object
gradation
gradation and classification on land
gradation disability identification
gradation on farmland
gradation on urban land
grad B drift
grad-B drift
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grade and purification of reagent
grade correlation
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