PanLinx
English
eng-000
periodic variation
普通话
cmn-000
周期变化
普通话
cmn-000
周期性变化
English
eng-000
cyclic variation
English
eng-000
periodic change
English
eng-000
periodical change
íslenska
isl-000
reglubundinn mismunur
русский
rus-000
периодическая вариация
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