haulage drift
常见例句
- Glory-hole is the vital haulage passage in the mine of drift hole with the glory-hole method. Whether the glory-hole is normal or not it may cause a tremendous influence to the mine production.
溜井是平峒溜井开拓方式矿山的运输咽喉，溜井正常与否对矿山生产影响极大。 返回 haulage drift