1.
the radioactive particles that settle to the ground after a nuclear explosion.
核爆炸后落在地面的放射性微粒。
2.
radioactive fall-out( dust carried by winds around the earth after a nuclear explosion,etc)
放射性微粒回降（核爆炸等之后放射性尘埃随风散落到地面）
3.
The experiment initiated a series of explosions, a fire, and a release of radioactive particles into the atmosphere.
试验引起一系列的爆炸、大火，以及把放射性微粒释放到大气之中。
4.
long range fall-out
远程(放射性)微粒沉降
5.
radioactive aerosol monitor
放射性悬浮微粒监测仪
6.
area of military-significant fallout
具有军事意义的（放射性）微粒沉降地区
7.
atmosphere particulate radioactivity detector
大气层微粒放射性探测器
8.
active particles
放射性[活性]粒子
9.
Electromagnetic radiation is corpuscular.
电磁辐射是微粒性的。
10.
Percutaneous Microwave Coagulation Therapy Combined with ~(125)I Seeds Implantation for Advanced Lung Cancer
经皮微波热凝固联合~(125)I放射性粒子植入治疗晚期肺癌
11.
(the sending out of)rays and atomic particles from radioactive substances
（自放射性物质中放射出的）射线和原子粒子
12.
microsec life radioisotope
微秒寿命放射性同位素
13.
The particles that descend in this fashion.
辐射尘以这种方式落下的放射性粒子
14.
alpha-emitting radionuclides
发射α粒子的放射性核素
15.
Nuclear explosions have released radiative particles into the sea.
核爆炸向海洋释放了放射性粒子。
16.
The slow descent of minute particles of debris in the atmosphere following an explosion, especially the descent of radioactive debris after a nuclear explosion.
放射性粒子的沉降爆炸后放射性粒子通过大气缓慢下降，尤指核爆炸后放射性粒子的下降
17.
Both uranium and plutonium are radioactive, and their activity consists in the emission of what are called "alpha particles".
铀和钚二者都具有放射性，它们的放射性包括放射所谓α粒子。
18.
the radiation of alpha particles during radioactive decay.
在放射性衰变的过程中放出α粒子的辐射。