A new high activity , lowcost catalyst and the optimal reaction conditions were found by experiments.通过实验找到了一种新型、高效 、 廉价的催化剂,以及最佳反应条件.The project involves harvesting rainwater using special lowcost containers and digging...
他滑稽可笑的形象只是用来掩饰内心深处痛苦的假面具。His laugh-a-minute image is just a front to hide his deep unhappiness.我们要拆穿那个卑劣骗子的假面具.We shall unmask that cowardly cheat.是你揭掉假面具的时候了.It's time for you to throw off your mask....