1. MT (Medical Technology) device operating, including daily and weekly maintain. 2. MT device simple troubleshooting. 3. Patients’ serum examination data recheck. 4. Execute reagent quality control and calibration, mostly biochemical and immune related reagents such as Human Hepatitis and hormone etc. 5. MT professional real-time system operating, including the data real-time system for blood examination, and the QC system 6. Simple customer service. (mostly incoming phone calls from customers)