radioactive sand的意思|示意

Far more worrying are several radioactive chemicals released as particles about one-quarter the size of a grain of sand. These include iodine-131, strontium-90 and cesium-137.

更令人担忧的是一些释放出的颗粒状放射性化学物质，这些颗粒仅仅是沙粒大小的四分之一，它们包括碘- 131、锶- 90和铯- 137。

But that was not before fishermen about 70km south of the plant had caught tiny sand-eels, known as konago, with larger than normal traces of radioactive iodine and caesium.

然而，在此之前有渔民在核电站向南大约70千米的地方捕到了含放射性碘元素和铯元素超标的一种叫做玉筋鱼的沙鳗鱼。

The borax plays the role of separating radioactive materials-uranium and thorium from the zircon sand.

硼砂对放射性物质—铀和钍起到从锆英砂中分离的作用。