dimethylphenanthrene什么意思解释？

dimethylphenanthrene的音标：dimethylphenanthrene的英式发音音标为：[daɪ'meθɪlfɪnənθri:n]dimethylphenanthrene的美式发音音标为：[daɪ'meθɪlfɪnənθrin]...