英语翻译In the discussion of practical mechanics the principles are outlined whereby the designer may tkae a structure or mechanical component with know forces acting on it and proceed to find out the various effects those forces will have on the system.In other words,the study of mechanics might start with a beam acted upon by given forces and use established methods to predict the deflection of the beam and the force distribution within the beam due to
问题描述：
英语翻译
In the discussion of practical mechanics the principles are outlined whereby the designer may tkae a structure or mechanical component with know forces acting on it and proceed to find out the various effects those forces will have on the system.
In other words,the study of mechanics might start with a beam acted upon by given forces and use established methods to predict the deflection of the beam and the force distribution within the beam due to those applied forces.
答
在讨论到实用机械学,（我们）概念了其原理,这样设计者就能通过用一个受到已知作用力的结构或机械部件来探寻这些力对系统产生的各种影响.
换句话说,机械学研究开始时一根横梁通过已有的力产生作用,（我们）则能用已有方法来预测横梁的偏转以,以及根据那些用上的力来预测横梁里力的分布（情况）