According to the horizontal moving rule of bridge crane and the swing rule of grab, We propose a method about swing proof of grab.
根据桥式起重机水平运行规律及抓斗摆动规律，提出了抓斗防摆的一种方法。
A design method on level swing beam disc plough was put forward by designing and calculating of level swing beam mechanism, side force balance mechanism and overall parameters.
通过对水平摆式圆盘犁的水平机构、机组侧向力平衡机构、机组整体参数的设计计算，提出水平摆式圆盘犁的设计方法。
A method of building the finite element model of swing movable teeth reducer was put forward according to the characteristics of the construction of swing movable teeth reducer.
针对摆动活齿减速器的结构特点，提出了摆动活齿减速器的有限元模型的建模方法。
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