As the solution to be purified is heated, its vapors rise to the fractionating column.当要被提纯的液体受热时, 它的蒸汽上升到分馏柱.Many kinds of proteinase inhibitors were purified from the larval hemolymph of insect ( Bombyx mori ) and char...
Van Gogh had a major influence on the development of modern painting.凡·高对现代绘画的发展有着重大影响。...a painting by Van Gogh...一幅凡·高的画Van Gogh had a major influence on the development of modern painting...凡·高对现代绘画的发展有着重大影响。Vincent V...