艾伦的脸皱了起来,好像要打喷嚏。Ellen's face wrinkles as if she is about to sneeze.打喷嚏的时候眼睛会闭上。When we sneeze, our eyes close.我们打喷嚏究竟是怎么回事?What exactly happens when we sneeze?...
我们想增加一些通晓科学的人手来运作电视台。We want to have more scientifically literate people running our television stations.他致力于科学的革新。He devoted his energies to the reformation of science.他们过分夸大了科学的力量。They are crediting science with power ...
从狭义来说, 换热器是一种容器.A heat exchanger, in a narrow sense, is a vessel.一效列管换热器中出来的冷凝液被用来预热进料.Condensate from the first - effect calandria is used for preheating the feed.波面板换热器是一种新型的换热设备,具有广泛的应用前景.The wavy plate heat exchanger...
Suffice it to say that the unusually high boiling point of acetic acid.只要谈一下醋酸的不寻常的高沸点就行.Acetic acid is formed as an intermediate in the anaerobic fermentation of carbohydrates, proteins, and fats.醋酸是碳水化合物, 蛋白质和脂肪在厌氧发酵时所...