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单词
periodic law
释义
pe·ri·od·ic law
AHD
[pĭr'ē-ŏdʹĭk]
D.J.
[ˌpɪriːˈɒdɪk]
K.K.
[ˌpɪriˈɑdɪk]
n.
Chemistry
(名词)【化学】
The principle that the properties of the elements recur periodically as their atomic numbers increase.
周期律:元素属性根据原子数的增长周期性出现的规律
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更新时间:2026/4/4 6:32:35