closed cup flash point tester of petroleum products

例句：

1. 1. The closed cupflash point tester is used to determine the flash point of petroleum products.
   闭杯闪点测定仪用于测定石油产品的闪点。
2. 2. The closed cup flash point tester was developed by a team of experts in the field of petroleum engineering.
   闭杯闪点测定仪是由石油工程领域的专家团队开发的。
3. 3. The closed cup flash point tester is an essential tool for analyzing the quality and safety of petroleum products.
   闭杯闪点测定仪是分析石油产品质量和安全性的重要工具。