| 释义 |
竖井shùjǐng直接通到地面的矿井,井筒是垂直的,提升矿物的叫主井,通风、排水、输送人员或材料的叫辅井。{vertical shaft; mine shaft leading straight up to the ground; A vertical shaft for lifting minerals is a leading shaft, and one for ventilation, drainage, and transportation of personnel or materials is a supporting shaft.}也叫also立井{lìjǐng}。 |