The small-oil-gun less oil ignition technology for igniting low-volatile poor coal is a patented technology developed in recent years.
应用小油枪微油点火技术点燃低挥发份贫煤技术为近年开发的专利技术。
2
A brown coal, a high-volatile bituminous coal and a low-volatile bituminous coal were pyrolysed at a slow heating rate in a thermogravimetric analyser.
在热天平上采用慢速升温制备了褐煤、高挥发分烟煤和低挥发分烟煤的半焦。
3
Vacuum pump is a relatively sophisticated equipment, it's working medium is a special high boiling point, low-volatile oil pump, its effectiveness depends on the mechanical pump and pump oil quality.