Initial nuclear radiation will be a significant hazard with smaller weapons, but the fallout hazard can be ignored as there is essentially no local fallout from an air burst.

相比小型武器，早期核辐射的危害是很严重的。但是放射性尘降的危害可被忽略，因为空中爆炸基本上不会给地面带来尘降。

youdao

First the Master's initial thesis - that the release of infrared radiation is delayed by the atmosphere - had to be accepted by the scientific establishment.

首先，大师的发轫之作——即红外辐射的释放受到大气层延迟的理论——不得不被科研机构接受。

youdao

If the burst is shallow enough to penetrate the surface, blast, thermal, and initial nuclear radiation effects will be present, but will be less than for a surface burst of comparable yield.

如果离地面够浅以致能穿透表面，那么将出现冲击波、热辐射以及早期核辐射作用，但是作用效果要小于近似当量的地面爆炸。

youdao

After an initial preparation period Ruby faces 33 courses of radiation treatment over the following seven weeks.

BBC: Family of Ruby Owen touched by support after second tumour

Medical spending for a breast-cancer survivor, for instance, averaged an estimated fifty-four thousand dollars in 2003, the vast majority of it for the initial diagnostic testing, surgery, and, where necessary, radiation and chemotherapy.

NEWYORKER: Letting Go