这样又导致了纳米管的导电性发生变化，而我们可以根据导电性变化的多少来鉴定每一种毒气。
This, in turn, causes the conductivity of the nanotubes to change-how much is a characteristic of each gas.
这需要思想者们构造健全的标准以分析论证他们的思维，并且根据他们的标准来鉴定他们想法的可靠性。
This requires that they develop sound criteria and standards for analyzing and assessing their own thinking and routinely use those criteria and standards to improve its quality.
这次论证包括根据仪器飞行规则所鉴定的几架商业飞机、地域性飞机和直升机。
Several business aircraft, regional jets and helicopters certified for instrument flight rules are included in this certification.
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