One calls this azeotropic composition.人们将此组成称为恒比组成.Further , the azeotropic point was eliminated therefore by adding ionic liquids.进而,由于添加了离子液体, 体系的共沸点消除了.Virtually all liquids, when mixed and heated, will display azeotr...
The survival of the proteins depends on the way in which bones are fossilised.蛋白质是否存留取决于骨头被石化的方式。Of course, fossilised bacteria would be expected to leave carbon traces too.当然, 细菌化石也应留下碳元素的痕迹.Researchers have discovered ...