Proceeding from dynamics of the dust motion in vacuum, the reasons and factors of causing dust flying up are analysed. For prevention and filtering of dust flying up some adoptable methods in design and operation of vacuum systems are proposed.

• 本文从真空中尘埃运动动力学出发，分析了尘埃飞扬原因和影响因素，对尘埃的防止和过滤提出了在系统结构设计和操作方法方面可采取的措施。