The palladium (Pd) catalysts for the hydrogenation of 1,3-dichloropropene to 1,3- propanediol were prepared by dipping process.是什么意思_The palladium (Pd) catalysts for the hydrogenation of 1,3-dichloropropene to 1,3- propanediol were prepared by dipping process.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句