运输的任务是将货物或旅客运送到目的地,将货物和旅客移动一个位置,现代化运输有五种形式,即公路、水运、航空、管道和铁路。位置的移动是一种机械运动,移动的过程是一个做功的过程,除动力装置以外,它必须通过物体的相互作用来实现。例如公路运输藉橡胶车轮和公路的相互作用,水运籍船舶和水的相互作用,航空藉飞机和空气作用,管道藉泵 The task of transport is to transport goods or passengers to their destinations, to move goods and passengers to one location. Modern transport takes five forms, namely, road, waterway, aviation, plumbing and railways. The movement of position is a kind of mechanical movement. The moving process is a process of doing work. Except for the power unit, it must be realized through the interaction of objects. For example, the road transport by rubber wheels and the interaction of the road, water transport and the interaction between water vessels, aircraft and air by air, pipe by pump