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.Copper - containing catalysts are the most suitable catalysts for producing 1, 2 - propanediol through catalytic hydrogenolysis of glycerol....
I like to make puree, using only enough sugar to preserve the plums.我喜欢做果泥，只需要用一点糖把李子腌一下。Medium to full bodied with vibrant fruit of mulberries and plums.酒体适中,入口有活泼的桑椹和洋李馨香....bottled plums.装罐贮藏的李子Then stone the fruit an...
家具体积太大，占了太多空间。Furniture is so bulky, it takes so much room.煮20分钟，直到液体体积减半。Boil for 20 minutes until the liquid has reduced by half.它体积很大，大约有3英尺长，高度也将近3英尺。It was bulky, perhaps three feet long and almost as high....
It was a methodical, unexciting chore.那是一份按部就班、枯燥乏味的无聊差事。A methodical approach works best.有条不紊的方法效果最佳。A scientist is usually a methodical person.科学家通常是办事有条不紊的人....