曾慶輝黃芳裕王澄霞2014-10-272014-10-271983-06-??http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/17445In the laboratory, we have been troubled with washing, recovering and filling of sample tubes, like NMR tubes, melting point tubes, seal tubes, microanalysis distillation apparatus or U-tyoe tubes, etc.We have designed a series of convenient apparatuses consisting only of suction apparatus, filtering flasks and rubber stoppers.回收沖洗減壓裝填