改善 – phrases

Terms for subject Oil / petroleum containing 改善 | all forms | in specified order only

Chinese	English
井壁改善	wellbore improvement
井眼改善	wellbore improvement
局部改善	minor betterment
技术方法的改善	method engineering
改善	enhancement
改善	amendment
改善井	improved well
校正、防止与改善	correction, prevention, improvement
榴分油加氢脱硫和改善烟法	distillate hydrodesulfurization and smoke point improvement