| 单词 | sr |
| 释义 | Sr nnoun.substancea soft silver-white or yellowish metallic element of the alkali metal group; turns yellow in air; occurs in celestite and strontianite Synset:Sr atomic number 38 strontium Substance Holonyms:celestite strontianite Hypernyms:metal metallic element Inherited Hypernyms:strontiummetallic elementchemical elementsubstancematterphysical entityentity Inherited Hypernyms:strontiummetallic elementchemical elementsubstancepartrelationabstractionentity Direct Hyponyms:strontium 90 Full Hyponyms: strontium 90 nnoun.quantitythe unit of solid angle adopted under the Systeme International d'Unites Synset:steradian Part Holonyms:sphere Hypernyms:angular unit Inherited Hypernyms:steradianangular unitunit of measurementdefinite quantitymeasureabstractionentity |
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