| 单词 | strontium |
| 释义 | strontium n. Chem. a soft silver-white metallic element occurring naturally in various minerals. Usage Symb.: Sr. Phrases and idioms strontium-90 a radioactive isotope of strontium concentrated selectively in bones and teeth when taken into the body. strontium oxide a white compound used in the manufacture of fireworks. Etymology: STRONTIA + -IUM |
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