[数]周期律；门捷列夫氏定律

periodic laws───[数]周期律；门捷列夫氏定律

periodic rate───周期性利率

periodical───adj.[数]周期的；定期的；n.期刊；杂志

periodically───adv.定期地；周期性地；偶尔；间歇

periodicals───n.期刊（periodical的名词复数形式）

periodic rates───周期性利率

periodic table───[化学]周期表

aperiodically───adv.不定期地；无周期地

periodic acid───过碘酸；[无化]高碘酸

At this point, chemical element periodic law is found to work has been successfully completed.───至此，化学元素周期律的发现工作已圆满完成。

Influence the Congress also formed the periodic law of the thought of Mendeleev.───这次大会也对门捷列夫形成周期律的思想产生了很大的影响。

The scientific exploration is the end and The Element's Periodic Law makes no exception of it.───科学的探索是永无止境的,元素周期律也不例外.

A new method to present the periodic law, the visual graphic form of the periodic system of elements, is proposed in this paper.───提出了一种新的元素周期律的阵列式图示方法。