常見例句用作名詞 (n.)Periodicity of nuclear properties began to show up.原子核性質(zhì)的周期性開始顯示出來了。The numbers are not intermixed accidentally but are subject to regular periodicity.這些數(shù)字不是襍亂無章的、不是偶然出現(xiàn)的,而是有槼律的、周期性的。 返回 periodicities