ductor

Intra-Tech Mechatronics Limited is a semicon-ductor equipment manufacturer based in Hong Kong.

综科机电有限公司是亚洲半导体设备主要产。

Here, free electrons rub off the con ductor and create a charge imbalance that causes the current flow.

这时，摩擦引起自由电子脱离导体，产电荷不平衡，从而产电流。