Copper - containing catalysts are the most suitable catalysts for producing 1, 2 - propanediol through catalytic hydrogenolysis of glycerol.对甘油催化氢解制取1, 2- 丙二醇效果最好的是含铜的催化剂....
It'served to make him rebellious and hence lethargic at times.这种情况引起他对现状的反抗心理,有时候便老是没精打采.It made us all lethargic before we had gone far.行不多远,大伙儿都意兴索然.The hot weather made me feel lethargic.炎热的天气使我昏昏欲睡....
她能听得见外面路上的吵闹声。She could hear a clamour in the road outside.吵闹声不绝于耳，我无法集中精神。I can't concentrate with all that noise going on.你要是关上那扇门, 就听不到吵闹声了.If you close that door, you can shut the noise in....