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ct current, DC 直流 direct impact 正碰 direct measurement 直接测量 discharge 放电 disorder 无序 dispersion 色散 displacement 位移 divergent lens 发散透镜 Doppler effect 多普勒效应 double slit diffraction 双缝衍射 driving force 驱动力 dry cell 干电池 echo 回声 eddy current 涡流 effective value 有效值 elastic body 弹性体 elastic force 弹[性]力 elasticity 弹性 electric charge 电荷 electric circuit 电路 electric corona 电晕 electric energy 电能 electric field 电场 electric field intensity 电场强度 electric field line 电场线 electric flux 电通量 electric leakage 漏电 electric neutrality 电中性 electric potential 电位，电势 electric potential difference 电位差，电势差 electric potential energy 电位能 | 
