美国药典USP34-61中, For solid media, growth obtained must not differ by a factor greater than 2 from the calculated value for a standardized inoculum。 怎么理解这句话呢? 对于固体培养基,获得的生长结果不得超过由标准接种而来的计算值的两倍范围?还是获得的生长结果与标准接种所计算的值的差值不能超过2?? 请教各位大侠如何理解这句话?
“获得的生长结果不得超过由标准接种而来的计算值的两倍范围” “获得的生长结果与标准接种所计算的值的差值不能超过2” Which one is more reasonable from technical point of view? Or, which one is unreasonable from technical point of view?