Magnetic coils focus the electron beams into fine spots.

磁线圈将电子束聚焦成细小的点。

Coils of rope lay on the quayside.

码头上放着一盘盘的绳子。

Shake the rope and let the coils unwind.

抖动绳索把绳圈展开。

Pythons kill by tightening their coils so that their victim cannot breathe.

蟒蛇捕杀时紧紧盘成圈，使猎物无法呼吸。

Problems arose between oscillator coils and the transistors themselves.

问题出在振荡线圈和晶体管之间。