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shaft sump
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井底水窝
位于井筒底部,用于积存井筒淋水及撒落粉矿的一段井筒。简称井窝。矿井辅助排水设施之一。
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Lilii Borea
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Liling Ceramic Museum
Liling ceramic production regions
Liling Museum(The Memorial Hall of Mao Zedong's inspection of Hunan Peasant Movement)
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Li literature
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Lillehammer
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