气味单位气味物质在溶液中足以使大多数人发生嗅觉感应的最低浓度以克升表示
The unit of odor is the lowest concentration of an odor substance in a solution that is sufficient to cause olfactory perception in most people, expressed in grams of liters
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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