石墨层中的碳原子相互连接形成碳环。In graphite sheets, carbon atoms bond together in rings.可分离的碳环化合物环内含七个或七个以下的碳.Isolable carbocyclic compounds contain seven or fewer carbons in the cycle.制取四碳环化合物的特殊方法是在第三十二章中阐述的.Special methods for four ...
动量可以被理解为惯性的定量表示.Momentum may be thought of as a quantitative expression of inertia.物质产生惯性的特性,还是很有价值的.The property of matter that gives rise to inertia is much more promising.除了在阻碍面前易惯性的意志薄弱.But always weak nerves in fron...