In the fission reactions that nuclear power generation relies on today, heavy elements such as uranium break into smaller ones, while in nuclear fusion small elements such as hydrogen stick together and form heavier elements (helium).

在我们今天用来产生核能的核裂变反应中，是把铀这样的重元素裂变成小的元素，而核聚变是把像氢这样的小元素结合在一起形成重元素（氦）。

© Project Syndicate 1995 – 2011

http://www.project-syndicate.org/ 01.11.2010

© Project Syndicate 1995 – 2011

http://www.project-syndicate.org/ 01.11.2010

Under the nuclear Non-Proliferation Treaty (NPT) of which Iran is still a member, countries are entitled to engage in enriching uranium for civilian purposes, and Iran claims that this is all it wants.

伊朗依旧是核不扩散条约的成员国。根据这一条约，各国有权进行民用核浓缩，而伊朗宣称它所要的就是这些。

© Project Syndicate 1995 – 2011

http://www.project-syndicate.org/ 29.10.2010

© Project Syndicate 1995 – 2011

http://www.project-syndicate.org/ 29.10.2010