At the beginning of loading, the major principal stress centralize in a triangle area under the lap.
刚开始加载时，最大应力集中在搭接面以下的一个三角形区域内。
In the ice calamity accident of power grid on beginning of 2008, the common condition in the accident of transmission line was the ice loading on earth wire fittings and insulators.
在2008年初的电网冰灾事故中，导地线金具和绝缘子覆冰掉串是输电线路事故中常见的情况。
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