coal sample

• 煤样

coal sample的用法和样例：

例句

1. 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。
2. The mass and the quantity of oxygen physisorption of the coal sample were measured before and after each heating experiment.
   在每一次加热前后都测量煤样的质量，以及进行对氧气的物理吸附实验。