petroleum substitutes 中文意思是什麼

petroleum substitutes 解釋
石油代用品
  1. These examples help explain why most environmental scientists believe that over the next few decades, the danger of degradation and exhaustion is greatest for potentially renewable resources, not nonrenewable resources ( except for petroleum and perhaps a few scarce minerals for which we can ' t find economically and environmently acceptable substitutes )

    這些例子有助於解釋為什麼大多數環境科學家相信在今後幾十年內,可再生資源被退化和枯竭的危險性是最大的,而不是不可再生資源(石油,還有少數幾種我們未能找到經濟和環保的代替品的稀有礦物除外) 。
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