2. The vacuum system consists of vacuum pumps, vacuum pipelines, vacuum valves and vacuum measurers. 真空泵、空管道、空阀门和真空测量头组成了真空系统。
3. BSU is small HEPA filter and fan unit, which is used for many purposes by users plan such as simple clean bench, clean booth, clean pass box &clean garman stocker etc. 该装置是一种提高局部小环境洁净度等级的空气净化产品，利用净化单元可制作简易洁净工作台、洁净层流罩、洁净传递柜和洁净存衣柜。
4. BSU is small HEPA filter and fan unit, which is used for many purposes by users plan such as simple clean bench, clean booth, clean passbox& clean garman stocker etc. 该装置是一种提高局部小环境洁净度等级的空气净化产品，利用净化单元可制作简易洁净工作台、净层流罩、净传递柜和洁净存衣柜。
5. Clean filter, Rubber ring to rotate out to the right, wipe clean with paper towels or a cotton swab, filter clean, please also clean cigarette holder wall. 清洁滤芯时，请将吸嘴旋出，用纸巾或棉签擦拭干净，滤芯清洁后，请同时清洁烟嘴内壁。
