propane deasphalting

例句：

1. 1. The propane deasphalting process is crucial for the success of oil recovery operations.
   丙烷脱沥青过程对于石油回收操作的成功至关重要。
2. 2. The company uses propane deasphalting technology to improve the quality of its crude oil.
   该公司使用丙烷脱沥青技术来提高其原油的质量。
3. 3. During the deasphalting process, the temperature and pressure must be carefully controlled to avoid anydamage to the equipment.
   在脱沥青过程中，温度和压力必须得到严格控制，以避免对设备造成任何损害。