The author analyzed the extractive matter, and confirmed their acid number was 161.8-169.6, the content of resin acid was 9.0%-12.5%and the content of fatty acid was 80.4-85.6%.是什么意思_The author analyzed the extractive matter, and confirmed their acid number was 161.8-169.6, the content of resin acid was 9.0%-12.5%and the content of fatty acid was 80.4-85.6%.在线翻译_英语_读音_用法_例句