Mountainous overlapping scenery here alone good, reflect kyushu brothers concentric force.
峰峦叠嶂此处风景独好，辉映九州兄弟勠力同心。
The preeminent mechanical state where no magnetic tension force exerts on either of the two concentric square coils carrying currents is described.
讨论平面内二同心方形线圈载流时一线圈不受磁张力的优良力学状态。
应用推荐