low ash coal 低灰分煤
low ash content 低灰含量
low ash additive 低灰分添加剂
Hardened Low Ash Grades 硬化低灰定量滤纸
low-ash-fusion coal 低灰熔点煤
low-ash graphite 低灰分焦炭
low-ash 低灰
low-ash coal 低灰煤
low-ash coke 低灰粉焦炭
Low ash coal is a precondition to develop a new area of coal utilization.
低灰煤是开发煤炭应用新领域的前提。
Result showed that each tree specie has a low ash content in trunk and a slight difference in ash contents of bark and branch.
研究结果表明，各树种均以干部灰分含量为最低，树皮和枝部灰分含量差异不大；
As a byproduct of crude refining process petroleum coke features a low ash content, moderate volatility and a high heating value.
石油焦是炼油工艺的副产品，具有低灰分、一定挥发份和高热值的特性。
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