... , vacuum,charge it, cleanse it for rebirthing.3. Intelligent alert system with sound and light, manual oil adding, oil discharging, ... uncompressed gas elimination4. Equip 10.4-inch LED touching screen, human touching communication with language, interfaces indicated by colorized cartoons5. ... , free design of unit's shell, all-direction wheel with lock, steady in using, flexible in moving, handy in ...