coal ball meaning in English
煤层石球
煤核
煤结核
煤球
煤中结核
Examples
- You not is say the love is a coal ball , does burn once
你不是说爱情是煤球满？但是烧过包？ - Numerical simulation of the gas flow in the bbd coal ball mill
磨煤机气相流场的数值试验研究 - Application of differential pressure amp; electric ears to coal ball mill
压差及电耳在钢球磨中的应用 - Discussion on the formation of the coal ball and its geological significance
浅论煤核的形成及其地质意义 - Study on cooling process of coal ball
型煤冷却过程分析