narrow vein

• 薄矿脉

narrow vein的用法和样例：

例句

1. It can be used for reference for the import and remoulding of supporting equipments of deep well mining of narrow and gentle dip vein.
   这对我国缓倾斜薄矿脉的矿山深井开采支护设备的引进和改造，将有一定的参考借鉴作用。