The results show that irradiation of the poor uraniumalloy 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。
2
The UO2 fuel is normally enriched with 3-5% of U235. The uraniumalloy has been enriched to contain up to 90% U235, but is normally used at between 45-75% U235 enrichment in PWR for ships propulsion.