请输入您要查询的英文单词:
单词
becquerel ray
释义
becquerel ray
noun
Usage:
usually capitalized B
Etymology:
after A. H.
Becquerel
:
a ray emitted by a radioactive substance
— used before adoption of the terms
alpha ray, beta ray, gamma ray
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更新时间:2025/3/21 12:55:06