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aws, and shall not infringe upon the legitimate rights of this website and its relevant obligees. In addition, when any content or service of this article is used for other purposes, written permission and remuneration shall be obtained from the person concerned and the relevant obligee.轉載或引用本文內容必須是以新聞性或資料性公共免費信息為使用目的的合理、善意引用,不得對本文內容原意進行曲解、修改,并自負版權等法律責任。s personal ownership.用戶可將本文的內容或服務用于個人學習、研究或欣賞,以及其他非商業(yè)性或非盈利性用途,但同時應遵守著作權法及其他相關法律的規(guī)定,不得侵犯本網(wǎng)站及相關權利人的合法權利。 ,分別為參數(shù).“倒U 型”曲線轉折點(即環(huán)境質量到達轉折點所對應地經(jīng)濟發(fā)展水平,如人均GDP, 可以通過一階求導數(shù)求解得到:文檔來自于網(wǎng)絡搜索式中,為環(huán)境質量達到轉折點時所對應地經(jīng)濟發(fā)展水平,此處為人均GDP. ,a0 , b0E為環(huán)境壓力,其中a稱為綜合影響系數(shù),表示除收入之外地其他所有因素對環(huán)境壓力地影響程度。為與國家和地區(qū)特征相關參數(shù)。版權為張儉個人所有This article includes some parts, including text, pictures, and design. Copyright is Zhang Jian39。Reproduction or quotation of the content of this article must be reasonable and goodfaith citation for the use of news or informative public free information. It shall not misinterpret or modify the original intention of the content of this article, and shall bear legal liability such as copyright.7 / 7