1)useful seam thickness,可采层厚度2)minable thickness of coa,煤层可开采厚度3)minable thickness,可采厚度4)working bed height,采煤层厚度5)productive section,开采层厚度6)the minimum mining thickness,最低可采厚度
用法例句
It is necessary and rationally that calculate the minimum mining thickness and the rock eliminating thickness of ore relates the technology of ore retrieving,the level of equip- ment,the ore base burning source、the character of ore product,the character of ore selecting.
