中央棒

中央棒中央棒
  1. 用实验方法研究了简仓内大小均匀的颗粒堆中央的竖直探测棒被提拉时受到的最大静摩擦力F。

    The article reports experiments which show that the maximum static friction force F on the surface of an aluminum rod inserted in the dry granular .