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0.5万亿

0.5万亿

0.5万亿

0.5万亿

1

The International Monetary Fund expects that figure to rise by more than another half trillion next year .

国际货币基金组织预计这个数字明年会再增加 0.5 万亿美元。

2

The concentration of nitrogen trifluoride in the atmosphere is about 0 . 5 part per trillion, making it very hard to measure.

大气中三氟化氮的浓度大约为 0.5 万亿分之一（ppt ），使得它很难测定。

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