So some renovations should be made,for example,increasing the solvent ratio of propane deasphalting;using hydrofinishing instead of clay treating;mo...
The redistillation apparatus was made by the renovation of obsolete equipments, which was helpful for increasing the utilization rate of dormant assets.
His recognized ethical development mode is based on the anti-traditional and anti-infusionist principles, and has contributed much to the renovation of our ethical education.