part per million 中文意思是什麼

part per million 解釋
一百萬分之一
  • part : n 1 部分,一部分;局部 (opp Whole)。 ★此義常省去不定冠詞。 如: a great part of one s money I l...
  • per :
  • million : n. 1. 〈pl. 〉無數,許許多多。2. 百萬元;百萬(鎊、美元、法郎)。
  1. A butylated hydroxyanisole or butylated hydroxytoluene or mixtures thereof within the limits specified in part ii of this schedule may be used in conjunction with propyl gallate or octyl gallate or dodecyl gallate or mixture thereof within the limits specified, provided that the total amount of antioxidant shall not exceed, in the case of anhydrous oils and fats and vitamin oils and concentrates, and partial glycerol esters, 300 parts per million, in the case of butter for manufacturing purposes, 240 parts per million and in the case of essential oils and isolates from the concentrates of essential oils, 1000 parts per million

    A不超逾本附表第ii部所指明分量的經丁化作用的羥基茴香醚或經丁化作用的羥基甲苯或其混合物,可與不超逾指明分量的丙基?酸鹽或辛基?酸鹽或十二烷基?酸鹽或其混合物同時使用,但添加於無水食油及脂肪維他命油及其濃縮物及部分丙三醇酯的抗氧化劑總分量,不得超逾百萬分之300 ,添加於作製造用途的牛油的抗氧化劑總分量,不得超逾百萬分之240 ,而添加於香精油及香精油濃縮物的分離物的抗氧化劑總分量,則不得超逾百萬分之1000 。
  2. Among the water quality indicators, cfu - 100ml means the number of colony forming units in 100 ml water ; ntu means nephelometric turbidity unit, and for drinking water, 1 mg l 1 ppm one part per million

    水質指標單位中, cfu 100ml表示每100毫升水樣中菌落形成單位數colony forming unit : ntu為濁度表示單位nephelometric turbidity unit 。對飲用水而言, 1mg l毫克每公升1ppm百萬分之一含量。
  3. Liu and his team analyzed data on 1, 500 men who had taken part in 30 trials which had been published between 1990 - 2005. their sperm production had been monitored each month until their sperm count hit 20 million per ml milliliter, which is considered fertile

    這些男士接受此種避孕措施后,其精子數量每個月都被記錄下來,直到停藥后,其精子水平恢復到每毫升2000萬個該精子水平被認為可生育。
  4. As for drinking water, 1mg l mini gram per liter 1 ppm part per million

    對飲用水而言, 1mg l毫克每公升1 ppm百萬分之一含量。
  5. Part per million abbr. ppm

    兆北率百萬分之幾
  6. In the atmosphere has risen from about 315 ppmv part per million by volume in 1958 to around 363 ppmv in 1997

    在大氣層中的每年平均濃度由1958年約315ppmv百萬份之一體積升至1997年約363ppmv 。
  7. In the atmosphere has risen from about 315 ppmv ( part per million by volume ) in 1958 to around 363 ppmv in 1997

    在大氣層中的每年平均濃度由1958年約315ppmv (百萬份之一體積)升至1997年約363ppmv 。
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