To analyze the market situation of polybutadiene rubber and butadiene in China and forecast the price tendency in the second-half of 2007.是什么意思_To analyze the market situation of polybutadiene rubber and butadiene in China and forecast the price tendency in the second-half of 2007.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句