短語詞組短語fatigue loading ratio 疲勞載荷比equal amplitude fatigue loading 等幅疲勞荷載fatigue loading spectrum 疲勞荷載譜fatigue loading type factor 疲勞尺寸系數(shù)high cycle fatigue loading 高周疲勞載荷biaxial fatigue loading 雙軸曏疲勞載荷low -cycle-index fatigue loading 低周疲勞加載multi -stage constant-amplitude fatigue loading 多級等幅疲勞 返回 fatigue loading