So far this law seems evidently an improvement upon the ancient system.

到目前为止，这条法律显然是对古代制度的改进。

In 2006, the Kalpana One Orbital Settlement  was proposed as an improvement upon the megastructures from the 1970s.

2006 年，卡尔帕纳一号轨道定居点被提议作为对 1970 年代巨型结构的改进。