常見例句The solvent extraction severity for deasphalting of VR in DACC technology (a combination process of VR solvent deasphalting, ammonia from asphalt and DAO catalytic cracking) was studied. 研究了“溶劑脫瀝青-瀝青制氨-催化裂化組郃工藝”脫瀝青的抽提深度。Direct Air- Cooling Condenser (DACC) 直接空冷系（DACC）direct air-cooling condenser (DACC) 直接空冷系統(tǒng)（DACC）Designing and Alternated Working Condition Computing Programs of DACC 直接空冷系統(tǒng)熱力設計和變工況計算程序 返回 DACC