请教一句话的翻译

The US Government has a paid-up license in this invention and the right in limited
circumstances to require the patent owner to license others on reasonable terms as provided for by
the terms of Grant No. MDA904-03C-0462, awarded by the NSA (National Security Agency). ？

The US Government has a paid-up license in this invention and the right in limited
circumstances to require the patent owner to license others on reasonable terms as provided for by
the terms of Grant No. MDA904-03C-0462, awarded by the NSA (National Security Agency). ？

美利坚合众国有一个发明已付费证，及在有限范围内有权要求专利持有人以合理的条件向他人授权，根据国家安全局的授权的Grant No. MDA904-03C-0462法律条款。

翻译的不好，请多多指教！