例句與造句

1. Thus, a high concentrations of light rare earth elements ) and enriched isotopes can be found in the continental arc magmas.
2. Enriched isotopes, crucial for the experiment, also came from Russia, Armbruster said, and the Slovaks built " a very nice detector ."
3. It's difficult to find enriched isotope in a sentence. 用enriched isotope造句挺難的