undulation period 中文意思是什麼
undulation period
解釋
波動周期- undulation : n. 波動；波狀起伏；【物理學】波動，振動；【醫學】搏動，心跳。
- period : n 1 時代；期；時期；期間；階段。2 〈the period〉現代，當代。3 周期；【地質學；地理學】紀。4 終結...
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Because of the influence of climate undulation and desertification, this area gradually formed diversified economic types which had principal extensive agriculture and auxiliary hunting, fishing, gathering during the period of hongshan culture
受氣候波動及沙地的影響，紅山文化時期逐漸在這一地區形成了撂荒輪作式粗放型農業為主漁獵、採集為輔的多樣化經濟模式。 -
During holocene, horqin sandy land had several periods of sandy land reduces affected by global climatic undulation, in which the first reduce period during warm time of holocene profoundly influenced the hongshan culture in xiliao river upstream
摘要科爾沁沙地在全新世期間，受到全球氣候波動的影響，有過多次沙漠化逆轉期，其中發生在全新世大暖期的第一次大規模逆轉對西遼河上游地區紅山文化產生了深遠的影響。
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