co-firing of petroleum coke and oil shale
waste cooking oil
餐饮废油
废烹调油
废餐饮油
废食用油脂
潲水油
废食用油
废油脂
餐饮业废油脂
地沟油
waste animal and vegetable oil
the waste water hydrolyzed by acidified oil
the waste water hydrolyzed by acidated oil
the waste rolling oil for aluminum foil
The recycling of waste oil
technology for converting plastic waste to oil
Research on the Ignition Mechanism of Oil Shale
Research on Electricity Generation with Oil Shale
Regeneration of Waste Oil