短语词组短語ductile -crack-growth fracture 延性裂紋擴展斷裂ductile crack propagation 延性斷裂擴展;延性裂紋擴展damage ductile crack 延性裂紋擴展ductile crack initiation 靭性啓裂ductile crack extension 延性裂紋擴展Ductile crack growth 塑性裂紋擴展 返回 ductile crack