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单词
chalcogen
释义
chal·co·gen
\ˈkalkəjən, -ˌjen\
noun
(
-s
)
Etymology:
International Scientific Vocabulary
chalc- + -gen
:
any of the four elements oxygen, sulfur, selenium, and tellurium forming part of group VI of the periodic table
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更新时间:2025/12/11 12:28:52