短語詞組短語notched beam specimen 凹槽梁試樣single edge notched beam 單邊缺口梁single notched beam 單邊切口梁single edge notched beam method 單邊切口梁法single edge -notched beam specimen technique 單邊切口梁法three -point bending U-notched beam 三點彎曲U形切槽梁notched free -free beam 含缺陷自由梁rotating beam notched 旋轉(zhuǎn)彎曲缺口rotating beam notched fatigue limit 旋轉(zhuǎn)彎曲缺口疲勞極限 返回 notched beam