“边际的”用英语怎么说？

也不离是说网点背积不小,此时网点边际的长度也随之增不小.In other words, net - point edge at this time also.人类在无边际的宇宙空间里是微不足道的.Humanity's place in the infinite universe is utterly insignificant.经济学家称这些为边际的变化.Economists call these marginal chang...