有时需要用一种编号系统来标明各配体的位置.It is occasionally necessary to use a number system to designate the position of each ligand.因此,作为配体的分子或离子有具有作给予用的孤电子对.Molecules orions which act a ligands should therefore have lone pairs of electro...
Such a whistlestop tour does not remotely qualify me to prognosticate on China's grander questions.这样走马观花的游历，根本不足以让我就中国那些宏大的问题发表预测。The machine can be remotely operated and monitored.这台机器可以远程操作和监控。There is no other p...