而且蜜蜂能觉察到空气中浓度仅万亿分之一单位的特定化学物质。
The bees can detect the target chemicals in the air in concentrations as low as a few parts per trillion.
那不算什么：2010年，互联网用户总计发送了107万亿(没错，单位是“万亿”)条消息。
That's nothing: Internet users collectively sent 107 trillion (yes, that's with a "t") messages in 2010.
甚至小于1.05万亿次，考虑到较小的一部分，也可能有单位禁用。
Even less than 1.05 TFlops, considering the lesser part is likely to have units disabled.
要肯定的是这些药物浓度极少，量是以每10亿或万亿为单位来计算。远远要低于医用水平。
To be sure, the concentrations of these pharmaceuticals are tiny, measured in quantities of parts per billion or trillion, far below the levels of a medical dose.
要肯定的是这些药物浓度极少，量是以每10亿或万亿为单位来计算。远远要低于医用水平。
To be sure, the concentrations of these pharmaceuticals are tiny, measured in quantities of parts per billion or trillion, far below the levels of a medical dose.
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