介绍了门机的制动方式多年来一直沿用人力液压制动操纵系统,由于它在某些方面存在着严重弊端,故对其进行改造,并引入加力装置,取得了良好效果。 The brake system of the door machine has been introduced for many years and has been using the manpower hydraulic brake control system. Because of its serious drawbacks in some aspects, it has been modified and introduced into the afterburner, which has achieved good results.