In this psper,the design principle,structure,distinguishing feature and composition of the Vacuum system Were outlined.The operating procedures of Vacuum suction filtration,distillation,con- centration and drying and the effects of comprehensive application were also introduced.

Objective To develop an automatic machine used for rinsing and drying ampoules and filling drug succus in field condition. Methods By using the microcomputer integrated with photoelectric-machinery technique,a full-automatic and continuous production line are formed including such working procedures as delivery,inspection,rinsing,drying,perfusing,topping,sealing,counting on,etc. Results It can implement series of operations described above on a continuous and automatic production line for producing 5,10,20 and 30ml drug succus instead of tedious,manual operations and complicated devices. Conclusion This machine can save 75% of labor and equipment,and 90% of water-electric power and bottles,which is suitable not only for common use but also for field army use.

Objective To develop an automatic machine used for dispensing, filtering and filling the drug solution. Methods The microcomputer integrated with photoelectric -machinery technique is used to develop the automaitically opertating machines which have series of automatic functions,such as heating, stirring, dispensing, filtering and filling the drug solution, as well as digitally dispensing amount, heating temperature, filling bottle-number, and etc. Results The machine is suitable for automatically preparing,filtering a volume of 5,000ml to 30,000ml and automatically filling various specifications of drug solution with a volume of 30ml to ≥1,000ml in all kinds of army and locality hospital pharmacy. Conclusion This machine is characterized with novel and airtight design, and complete functions. It is suitable to be used not only in common but also under field condition of army.