零六五六深蓝词典

photoperiod

P 开头单词GMAT词汇

柯林斯词典

    photoperiod /ˌfəʊtəʊˈpɪərɪəd/

  • 1. N the period of daylight in every 24 hours, esp in relation to its effects on plants and animals 光周期→see also photoperiodism

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