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讨论了如何利用现代电子技术把矿用光干涉ＣＨ４检测仪变成为直读式测量仪表的原理和设计方法，从而使老仪表焕发青春。
Discussed how to make use of modern electronic technology to convert mine interference interference CH4 tester into a direct-reading measuring instrument principle and design method, so that the old instrument rejuvenated.