Once himself and hopeless, no longer sum, only play safe and buckle dangerous card, this is the safest method.
一旦自己和牌无望，就不再求和，只打安全牌，扣住危险牌，这是最安全的方法。
For steel plates, this can occur when a thin steel plate is juxtaposed with rigid materials, and the steel may only buckle locally away from the rigid materials.
对于组成钢管的矩形钢板件而言，当其与刚性材料并置时钢板的屈曲仅发生外凸。
应用推荐