短语词组短語Brittle cracking model 模型hydrogen brittle cracking 氫脆斷口surface brittle cracking 表麪脆性開裂brittle cracking sensitivity 開裂敏感性Bsurface brittle cracking 表麪脆性開裂brittle cracking of disk 葉輪脆性斷裂 返回 brittle cracking