clarain

基本解释

The particle size of clarain declines more rapidly than that of culm.
燃烧后期, 亮煤的颗粒破碎比灰煤更快；
The fragmentation of clarain and culm tends to be severely with the increase of particle size, bed temperature and combustion time.
而暗煤颗粒则因相反的原因不发生破碎或仅发生轻微破碎。
Clarain from Tongting (Huaibei, Anhui Province, China) bituminous coal was extracted with CS2 using fractional extraction, and then the extracts were analyzed with GC/MS.
摘要以CS2为溶剂对童亭亮煤进行了按时间段分次取样的索氏溶剂萃取，采用GC/MS对各次萃取物进行了定性分析。
For clarain, which has a relatively lower density, an extremely low volatile, and a higher fixed carbon content (> 80%), the primary maceral is vitrinite.
暗煤富含矿物质成分，密度极高但含碳量却很少，热值很低，接近于原煤中的矸石。
The combustion model of clarain in fluidized bed is equidensity shrinking core model, while that of durain is equidiameter one, and that of culm is a mixed model.
亮煤在流化床燃烧中服从等密度燃烧模式, 暗煤服从等直径燃烧模式, 而灰煤则服从混合燃烧模式。