The results show that irradiation of the poor uranium alloy had no remarkable influence on the burning properties of three-combination nitroguanidine propellant.

研究结果表明，贫铀合金辐照对三胍药的燃烧性能无显著影响。

youdao

"And I really don't know what will disappear first, their enriched uranium or their poor government,"

VOA: standard.2009.06.21