coal specimens

• 煤样

coal specimens的用法和样例：

例句

1. Two raw coals from Yueliangtian and Kaili coal mines in Guizhou Province were extracted with dichloromethane separately.
   摘要用二氯甲烷对贵州月亮田和凯里两种煤样进行了索氏萃取，并采用柱色谱对萃取物进行了族组分分离。
2. The determined result differences of the caking index of the same coal sample under different test conditions are discussed.
   探讨了不同试验条件下同一煤样粘结指数测定结果的差异。