An isolating circuit used to prevent a driven circuit from influencing the driving circuit.用以防止被驱动电路对驱动电路的影响的一种隔离电路。
The factors influencing the annoyance degree of vacuum cleaner noise was analyzed from the angle of subjective perception.摘要主要从分析吸尘器产生噪声的原因，从主观感受角度分析噪声烦恼度对人产生影响的相关因素。
