针对钢轨防断存在的难点、威胁、风险、缺陷,积极开展应对,从“三严、三全、三防”三个方面采取针对性措施,提高防断的控制能力。 In response to the difficulties, threats, risks and defects in the prevention of rail accidents, the Group actively took measures to tackle the problems and adopted targeted measures from the aspects of “three strictness, three fullness and three defenses” so as to enhance the ability of prevention and control.