parts per billion 中文意思是什麼
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Among the asthmatic chinese children, the level of nitric oxide is about 80 parts per billion ( ppb ) while for normal children it is only 29ppb
結果發現患有哮喘的華人兒童中，一氧化氮的濃度為80ppb ，正常兒童則只有29ppb 。 -
Morsdorf forecast that china will produce 10 per cent of the firm s global vehicle parts sales by 2010. currently, the share is less than 1 per cent. thyssenkrupp automotive posted revenue of 7. 31 billion euros us 9. 54 billion in 2003 - 04, accounting for nearly one fifth of group sales
數據顯示，一季度產銷量和營業收入均比去年同期增長超過30 %分別達到38 . 76 %和33 . 85 % ，而其他對手的增長都在20 %以下，甚至有個別廠家銷售量和銷售收入出現了負增長。 -
In early 2003, new, more sensitive analytical technology found low levels up to 25 parts per billion of semicarbazide in food products packed using soft plastic seals
年初，更靈敏的分析技術在軟封口塑料包裝的食品中發現了微量的氨基脲最高達到
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