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因本人学识浅,经验少,仅将二年来遇到的一些实际问题提供大家参考,如有错误,希望各位同志指正。自制储气瓶装置如图:a瓶是盛药品的大口
Because of my shallow knowledge and my lack of experience, I will give you some reference only to some practical problems encountered in the past two years. If there are any mistakes, I hope you will correct me. Homemade gas cylinder device shown in Figure: a bottle is the mouth of Sheng medicine