1)  dual frequency converting
双变频
2)  double inverters
双变频驱动
3)  Double-frequency
双变频调速
4)  double-frequency measurement
双变频测量法
1.
Additionally,double-frequency measurement based on low-frequency signal injection is put forward for branch grounding resistance measurement in faulty branch selection to avoid the influence of the distributed grounding capacitance of DC system on low-frequency signal injection.
并在低频信号注入法的基础上提出了双变频测量法,测量各支路的接地电阻值,从而判断出故障支路,解决了低频信号注入法容易受到直流系统支路中存在的对地分布电容的影响问题。
5)  dual-conversion receiver
双变频接收机
6)  double-conversion receiver
双变频式接收机
补充资料:2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂]
CAS:38051-10-4
分子式:C13H24Cl6O8P2
中文名称:2,2-双氯甲基-三亚甲基-双[双(2-氯乙基)磷酸脂]

英文名称:2,2- bis(chloromethyl)-trimethylene bis[bis(2-chloroethyl)phosphate]
phosphoric acid, 2,2-bis(chloromethyl)-1,3-propanediyl tetrakis(2-chloroethyl)
2,2-bis(chloromethyl)trimethylene bis(bis(2-chloroethyl)phosphate)
2,2-bis(chloromethyl)-1,3-propanediyltetrakis(2-chloroethyl)phosphate
说明:补充资料仅用于学习参考,请勿用于其它任何用途。