minimum wall thickness

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.

最低可采厚度与夹石剔除厚度是计算工业矿床工业储量的重要工业指标。