The samples, according to Orthogonal Design principle, fully represent the systematic characteristic of PEDM.
依据正交设计原理设计的试验样本，能充分代表混粉电火花加工技术工艺系统特性；
The permanent electric dipole moment (PEDM) of hydrogen atom is calculated in classical mechanics and double-wave mechanics.
用经典力学和双波量子力学计算了氢原子的固有电偶极矩。
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