999英语网 英语单词
Butylene的音标发音
Butylene
英式发音：[bju:tili:n]
美式发音
(noun.) any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers.
班森编辑
(noun.) any of three isomeric hydrocarbons C4H8; all used in making synthetic rubbers.
班森编辑