The willpower on the displacements, velocities, and accelerations on the portions of a machine to get a prescribed input motion is the subject matter of kinematics of machines. This kind of calculations may be designed with no looking at the forces involved, because the motions are constrained. 像小米电视已经限制U盘安装第三方软件了，需要你拥有一个安卓手机，安装小米电视助手才可以。 Add... https://solangev467mia2.bmswiki.com/user