近年来、先后有近二十人来信和来台参观要求介绍一下虫胶、松香、酒精溶液的配制方法。现借贵刊一角,将我台使用虫胶、松香、酒精溶液的情况介绍于下,供使用虫胶、酒精溶液的台站在配液时参考。我台使用虫胶、松香、酒精溶液冲洗熏烟记录图纸,是在付忠祥同志关于《冲洗熏烟图 In recent years, there have been nearly 20 letters and visits to Taiwan to ask about the preparation of shellac, rosin, alcohol solution. Now through the corner of your magazine, I will use shellac, rosin, alcohol solution of the situation introduced in the next, for the use of shellac, alcohol solution of the station in the dosing reference. I use shellac, rosin, alcohol solution to flush fumigation records drawings, is to pay Comrade Xiang Zhongxiang "on the fumigation map