1. Through utilizing deep groove rollers, solve coal slip problem when big declivitous angle belt conveyor working. 通过采用深槽托辊组解决了大倾角带式输送机物料的下滑问题;
2. The Multi-work Condition Declivitous Impact Testing System was introduced which has variable impacting angle, rigidity, and length of stroke, and has elastic booster to increase impacting intensity. 论述了多工况斜面冲击试验新系统,具有碰撞角度和壁障刚度可调,斜面冲程和冲击角度可选,并装有弹性助力系统以提高冲击强度等特点。