1)18 electron rule,18 电子则2)18 electron rule,18电子规则3)18O electrolysis,氧18电解4)18-step current,18脉波电流5)Eighteen voltage space vectors,18电压矢量6)Isotopic ~(18)O_2 molecules,同位素氧-18分子
用法例句
The resultant AC input currents take the form of 18-step current having a total harmonic distortion(THD) of 10.
