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joshua astray (2024-01-11 20:19:50)
不错的，地球仪 ，即地球的模型。地球仪是为了便于认识地球，人们按照地球的形状，按照一定的比例缩小，制作了地球的模型——地球仪。在地球仪上设有长度、面积和方向、形状的变形，所以从地球仪上观察各种景物的相互关系是整体而又近似于正确的。世界现存最早的地球仪是由德国航海家、地理学家贝海姆于1492年发明制作的，它现如今保存在纽伦堡博物馆里。
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UPVC Pipe Fitting OD Straight Coupling Joint Connector
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UPVC Pipe Fitting Elbow Schedule 80 1" Socket, 2 Pack 45 Degree Adapter Connector, Gray
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UPVC Pipe Fitting Elbow Schedule 80 1" Socket, 90 Degree Adapter Connector, Gray
UPVC Pipe Fitting Elbow Schedule 80 1-1/2" Socket, 2 Pack 45 Degree Adapter Connector, Gray
UPVC Pipe Fitting Elbow Schedule 80 1-1/2" Socket, 2 Pack 90 Degree Adapter Connector, Gray
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UPVC Pipe Fitting Elbow Schedule 80 1-1/2" Socket, 3 Pack 90 Degree Adapter Connector, Gray
UPVC Pipe Fitting Elbow Schedule 80 1-1/2" Socket, 45 Degree Adapter Connector, Gray
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