This paper is about the technology innovation commercial manufacture of sodium p - toluene sulfonic acid.
针对某厂对 甲苯 磺酸钠生产过程中所存在的问题,提出了相应的技术改造方案.
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This paper deals with the development and the commercial manufacture of a multifunction dual - anti compound filter.
本文论述了多功能双 抗 复合滤料研制开发及至工业化生产的情况.
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