后杆 meaning in Chinese

back bar
back lever
back links
back rod

The experimental results show that the wave shaper can control the moving direction of the rod fragments after the warheads exploded and ensure the integrity rate of the rod and that there is a close relationship between the flight attitude and the positioned angle , which is mainly reflected by the rotation velocity of the rod
试验结果表明：采用波形控制器可以较好地控制战斗部爆炸后杆形破片的飞散方向，以及保证杆条的完整率；杆条的飞行姿态与放置角有密切关系，主要通过杆条旋转速度表现出来。