This paper mainly discussed about the research on microbubbles generation by metal microporous tube, it is a new method of bubble formation.
本文主要研究了用金属微孔管制造微气泡，这是一种比较新颖的气泡制造方法。
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This paper puts forword a method of collecting ammonia in the air of workshop by silicagel tube replacing the big bubble collection , and analyzing quantitavely with Nashi - colorimetry.