Encourage social funds to enter the oil circulation.

鼓励社会资金进入石油流通领域。

youdao

The system is essentially a temperature-controlled oil circulation system …

循环供油控温系统，保证测试精度达到国际标准要求。

youdao

High conversion could be obtained by using the tail oil circulation process and other integrated processes.

采用尾油循环和其它组合工艺，可以得到较高的重渣油加氢转化率。

youdao

Poor water circulation meant that the organic material was covered before it could decompose, and it was eventually transformed into oil and natural gas.

FORBES: Going deep