然而他们做梦也没想到，雨水时的尘埃微粒含有极强的放射性元素。
But they never imagined the particles contained in the rain had an array of radiation.
如果暴露在空气之中，可能会着火和爆炸，从而散发放射性微粒。
If left exposed to air, they may catch fire or explode, spreading radioactive particles into the air.
穿戴呼吸面具和防护用品可以防止摄入放射性微粒。
Wearing masks and respirators prevent the ingestion of radioactive particles.
放射性微粒形成之后，可以飘到很远的地方，具体多远就看主风的速度和方向。
Radiation-emitting particles can then travel afar, depending on the speed and direction of the prevailing wind.
然而，甚至计算也可能不会反映放射性微粒穿越太平洋所花的时间，因为它不可能径直穿越太平洋。
However, even that calculation may not reflect how long the particle would take to cross the Pacific, since it would not likely cross the ocean in a direct path.
目的进一步研究在事故状态下，氧化钚放射性微粒的扩散特征和粒度特征及其吸入危险性。
Objective in the accident conditions, the radioactive particle size and diffusion characteristics and its inhalation risk of plutonium dioxide were further investigated.
第一台高效微粒空气过滤器可以消除空气中的放射性粒子。
The first HEPA filters removed radioactive particles from the air.
第一台高效微粒空气过滤器可以消除空气中的放射性粒子。
The first HEPA filters removed radioactive particles from the air.
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