rate of lump coal中文,rate of lump coal的意思,rate of lump coal翻译及用法
2026-06-27 01:30浏览次数 45
rate of lump coal
原煤块率
rate of lump coal 例句
英汉例句
because the rate of lump coal influence the price directly, so coal enterprises hope to have a method to control the rate of lump coal and increase the economy profit.