In the case of valeric acid, for example, that concentration was seven parts per trillion-a level only just detectable by bloodhounds.
比如，缬草酸的汗臭味浓度为万亿分之七，这种浓度只有警犬才能发觉。
Most of the specimens containing acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, lactic acid and succinic acid which were accorded with the result of bacteriologic study.
在大多数标本中含有乙酸、丙酸、丁酸、异丁酸、戍酸、乳酸和琥珀酸，与细菌培养的结果基本相符。
Most of the specimens containing acetic acid, propionic acid, butyric acid, isobutyric acid, valeric acid, lactic acid and succinic acid which were accorded with the result of bacteriologic study.
在大多数标本中含有乙酸、丙酸、丁酸、异丁酸、戍酸、乳酸和琥珀酸，与细菌培养的结果基本相符。
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