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winze
A winze is a minor connection between different levels in an underground mine. When worked upwards from a lower level it is usually called a raise; when sunk downward from a higher level it may be called a sump. The top of a winze is located underground and it is not equipped with winding gear, in contrast to a shaft, which is a deeper connection between levels and does have winding gear, whether the top of the excavation is located on the surface or underground.
==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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