| 释义 |
periodicityperiodicity[ˌpiəriəˈdisiti]n.1.■周期(性); 周期数; 定期性; 循环性; 间歇性频率2.■周频, 频率; 周波3.■【医】定期发作;【天】定期出现4.■【化】周期表中的位置the periodicity of economic crises经济危机的周期
特殊用法conditional periodicity1.■有条件周期性crisis periodicity1.■(资本主义)危机[恐慌]周期endogenous periodicity1.■内源周期性environmental periodicity1.■环境周期性hidden periodicity1.■潜周期性long periodicity1.■长周期性long-range periodicity1.■远程周期性lunar periodicity1.■月周期性microfilaria periodicity1.■微丝蚴周期性seasonal periodicity1.■季节周期periodicity of frequency wobbling1.■频率飘动周期periodicity of a pseudorandom sequence1.■伪随机序列的周期性periodicity of structure1.■(晶体)结构的周期性 |