upper workings in Chinese

• 上部采区
• 上部巷道

• "upper" in Chinese :    adj. 1.(更)上面的，上方的，上部的；较高的；上级 ...
• "working" in Chinese :    adj. 1.工作的，从事劳动的。 2.操作的，作业的。 ...
• "workings" in Chinese :    工作方式, 作用, 活动方式; 矿内巷道
• "abandoned workings" in Chinese :    报废巷道; 废弃巷道; 废巷道
• "active workings" in Chinese :    生产工作区; 生产巷道
• "advance workings" in Chinese :    超前工祖; 前进式采掘; 前进式开采面
• "ancient workings" in Chinese :    古代采掘巷道
• "developement workings" in Chinese :    开拓巷道
• "development workings" in Chinese :    准备平巷
• "drainage workings" in Chinese :    排水巷道
• "draughty workings" in Chinese :    通风巷道
• "gold workings" in Chinese :    金矿采洗场
• "hillside workings" in Chinese :    山坡开采区; 山腰开采区
• "inactive workings" in Chinese :    停工区
• "irregular workings" in Chinese :    不规则采区