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单词 chert
释义
Chert
nnoun.substancevariety of silica containing microcrystalline quartz
Derivationally Related Form:cherty
Hypernyms:silica silicon dioxide silicon oxide
Inherited Hypernyms:chertsilicaoxidecompoundchemicalmaterialsubstancematterphysical entityentity
Inherited Hypernyms:chertsilicaoxidecompoundchemicalmaterialsubstancepartrelationabstractionentity
Direct Hyponyms:taconite
Full Hyponyms:
taconite
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