Firstly, limit oxygen index test with MF-AFR fiber, methyl cellulose and polymer fiber testified that MF-AFR fiber has the flame-retarded function.是什么意思_Firstly, limit oxygen index test with MF-AFR fiber, methyl cellulose and polymer fiber testified that MF-AFR fiber has the flame-retarded function.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句