Crude oil transferred through the pipelines meets ______ of annual need of China.
举一反三
- When the crude oil is obtained from the field, it is taken to __________ to be treated. The commonest form of treatment is heating. A: the corporations B: the refineries C: the pipelines
- What type of oil is not covered in the oil pollution law?（） A: mineral oil B: machinery oil being transferred for shipboard use C: crude oil unrefined D: normal bilge oil and water
- Crude oil from Xinjiang to Chongqing
- Crude oil must be and then can be used. (refined / extracted)
- The oil leaving the oil pump passes through the oil filter before it is circulated through the engine.