The pill initial position efficiency peak value is defined as the distance between pill front end and coilend.
弹丸初始位置定义为弹丸前端与线圈末端间的距离，习惯上把其处于线圈外时效率峰值定义为负。
2
The Jumping ring Trick Now, with the coil current turned on, grasp the aluminum ring in your fingers and hold it down against the coilend.
跳环的计谋现在有了打开的线圈电流，把握在你的手指铝环和保持对线圈端下来。
3
The invention provides a reliable rotor commutator welding method, including the steps: the coilend heads of the upper coil and the lower coil are welded through the argon-arc welding;