Starting with the principle of moment distribution method, the paper applies sequence theory to derive the formula of rod-end bending moment.
从力矩分配法的原理出发，利用数列理论，导出了杆端弯矩计算公式。
The utility model relates to an electromagnet, which is composed of a yoke iron, an armature iron, a push rod, a pull rod, a starting coil, a sustain coil, a controlling circuit and an end cover.
本实用新型涉及一种电磁铁，有轭铁、衔铁、推杆、拉杆、启动线圈、维持线圈、控制电路和端盖。
With arc starting and push current, effectively prevent welding rod sticking.
具有引弧，推力电流，有效防止焊条粘结。
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