radioactive isotope造句怎么写

The inferno spewed a deadly plume of radioactive isotopes into the atmosphere.

Most of the samples that have passed across Hasegawa's desk have proved to be within the legal consumption limit of the radioactive isotopes cesium 134 and 137 and iodine 131.

The city's challenge, chiefly, is to dispose of cesium-137, a radioactive isotope with a half-life of 30 years.

The radioactive isotope Strontium-90, one of the by-products of the bombs, spread into the atmosphere, fell onto the land, was ingested by dairy cows and passed into the milk supply.

Expectant mothers may not do work connected with radioactive isotopes.

A large number of radioactive isotopes among the heavy elements are of three series.

Uptake, translocation, and distribution of 14C-labelled oligosaccharides in watermelon seedling were investigated by the means of radioactive isotope tracer.

The large number of radioactive isotopes among the heavy elements fit into three series .

For instance, because it takes only 8 days for the radioactive isotope iodine-131 to decay away to half its original level of radioactivity, simply waiting should be a fix.

a radioactive isotope of an element; produced either naturally or artificially.