网站首页 英语词典
Synthesis of amino - sulfonic acid - based high performance water - reducer and testing results of later stage concrete were discussed.
本文主要讨论了氨基磺酸系高性能减水剂的合成过程及后期混凝土试验情况.
互联网
国先网英语在线翻译词典收录了4367410条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。