volumetric specific gravity of coal

例句：

1. 1. The engineer used a volumetric scale to measure the size of themachine parts.
   工程师使用一个体积秤来测量机器零件的大小。
2. 2. The volumetric measurementis crucial for the accuracy of the experiment.
   体积测量对于实验的准确性至关重要。
3. 3. The volumetric data was analyzed using statistical software.
   体积数据通过统计软件进行分析。