paraffin mass

例句：

1. 1. The wax seal was used to protect the document during transportation.
   蜡封被用来在运输过程中保护文件。
2. 2.The paraffin mass was carefully extracted from the sample.
   从样本中小心地提取了石蜡团。
3. 3.The paraffin mass is a valuable resource for industrial applications.
   石蜡团是一种宝贵的工业应用资源。