引用本文: | 梅凤翔. 关于牛顿力学的力和拉格朗日力学的力------理论力学札记之九[J]. 力学与实践, 2011, 33(5): 63-64. DOI: 10.6052/1000-0879-lxysj2011-023 |
Citation: | Mei Fengxiang. On forces in Newton mechanics and Lagrange mechanics[J]. MECHANICS IN ENGINEERING, 2011, 33(5): 63-64. DOI: 10.6052/1000-0879-lxysj2011-023 |