parts per million carbon 中文意思是什麼

parts per million carbon 解釋
百萬分率碳
  • parts : 部分
  • per :
  • million : n. 1. 〈pl. 〉無數,許許多多。2. 百萬元;百萬(鎊、美元、法郎)。
  • carbon : n. 1. 【化學】碳。2. 【電學】碳精棒[片、粉];碳精電極。3. (一張)復寫紙。4. 復寫的副本。
  1. He found that, between these years, the carbon dioxide content of the atmosphere went up from around 315 parts per million to around 370 parts per million ( see graph 2 )

    譯文:有一位名叫查樂斯?奎林的科學家曾經把1957 ? 1997年期間大氣層中二氧化碳的含量作了精確的統計。
  2. Parts per million carbon ppm

    百萬分率碳
  3. The billions of tons of carbon dioxide and other greenhouse gases still accumulating in the earth s fragile, protective atmosphere have already raised concentrations to around 430ppm parts per million of carbon dioxide equivalent co2e, compared to 280ppm before the industrial revolution

    每年數十億噸的二氧化碳和其他溫室氣體排放到大氣中,使本來脆弱的地球環境日益惡化。大氣中的保護氣體濃度與工業革命前的280ppm相比,已經上升到了約430ppm (二氧化碳當量) 。
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