短語詞組短語quenching g crack 淬火裂紋;淬火裂痕quenching brittle crack 淬硬脆化裂紋quenching superheat crack 過熱淬火裂紋quenching crack analysis 淬火開裂分析susceptibility of quenching crack 淬裂敏感性quenching crack resistance 抗淬裂性能up quenching crack 上滾裂紋 返回 quenching crack