Study on the conservation of electromagnetic field energy and angular momentum when neutral conductor spins in the even magnetic field 中性导体在磁场中旋转时电磁场能量及角动量守恒研究
4.
To modify / clarify the instructions to provide details when the use of grounding through a neutral conductor is prohibited in electric clothes dryers 修订文件还修改/列举了关于产品使用说明的规范,列举了在干衣机内禁止使用电源“零”线作为接地措施的条件。