Read Edit View history Discussion 直井 zhíjǐng vertical shaft Origin Definitions Defs Strokes Stroke Words Sentences Sents 直井 zhíjǐng vertical shaft vertical mine shaft used for ventilation, drainage, or transportation Cross-References Same as 竖井 shùjǐng
直井 zhíjǐng vertical shaft vertical mine shaft used for ventilation, drainage, or transportation Cross-References Same as 竖井 shùjǐng