这只烧杯的底部有些沉淀物.There is some deposit in the bottom of the flask.烧杯被放在喷灯上方.The beaker was placed on top of a torch.金属铜沉淀在烧杯底部.The copper deposits at the bottom of the beaker....
They will be exhibiting their new designs at the trade fairs.他们将在商品交易会上展出他们新的设计。Prices at the fairs are stable with a slight decline.价格稳中有降.Our company puts up exhibIt'stands at fairs and expositions.我们的公司在展览会和博览会上推...
评语: 颜色:淡淡的带有微少的柠檬色泽, 且非常透彻明亮.Appearance: Pale in appearance with a slight lemon tinge , yet brilliantly bright.批评,是人们可以用极微少的代价而成为一言重于九鼎之人的一种学问.Criticism is a study by which men grow important and formidable at very small...
Selective dehydration of hexose, such as D - fructose, is one of main synthetic methods for 5 - hydroxymethylfurfural.果糖等己糖选择性脱水是制备 5- 羟甲基糠醛的主要方法之一....