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1.The design of the hollow billiards of Century CK Security Locks is plane and heterotype, It can enhance the billiard very poor precision and key sealed,it can reduce the rate of mutual opening, Improving mechanical properties of security.
世纪西科防盗锁锁芯的上弹子设计成平面异形空心弹子，提高弹子的极差精密度和密钥量，减少锁具间的互开率，提高机械防盗性能。收藏指正
2.The augmentation of damping is the key to suppressing structural vibration. To cut down element number for modeling structure with constrained damping layer(CDL) in general FEM software,the whole element method is adopted to solve the extension,bending and torsion vibration of the hollow circular beam with CDL.
增加阻尼对结构振动抑制具有很重要的意义,为克服三维有限元建模单元数量较大的问题,采用整体单元方法求解圆形空心截面约束阻尼梁的拉伸、弯曲和扭转振动。收藏指正
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