We currently have nuclear propulsion systems.

我们目前拥有核推进系统。

The submarine's nuclear propulsion system is said to be unaffected.

据说这艘潜艇的核推进系统没有受到影响。

The U.S. side has approved a memorandum on an agreement between the three countries for the exchange of naval nuclear propulsion information.

美方批准了一份关于三国交流海军核推进信息的协议备忘录。

Nuclear propulsion sounds great but let's just wait until we start shooting a bunch of nukes in the air and figure out if other countries don't get mad about it.

核推进听起来很棒，但我们要等到向空中发射一堆核武器，并弄清楚其他国家是否对此感到生气才行。