前言我们伟大的社会主义祖国,在伟大领袖毛主席的英明领导下,变得更加繁荣富强。伟大的无产阶级文化大革命带来了社会主义建设的新高潮,祖国各地呈现出革命、生产一派热气腾腾的景象。随着社会主义革命和社会主义建设的飞速发展,许多战线和部门愈来愈迫切地需用分析仪器。对于化肥厂来说,红外线微量气体分析器是一项急需的仪器。过去对于微 Foreword Our great socialist motherland, under the wise leadership of Chairman Mao, the great leader, has become even more prosperous. The great Great Proletarian Cultural Revolution brought a new upsurge in the socialist construction. The entire country is showing a revolution and producing a steamy scene. With the rapid development of the socialist revolution and socialist construction, many fronts and departments are increasingly in need of analytical instruments. Infrared trace gas analyzers are a much needed instrument for fertilizer plants. The past for micro