notcher断屑器notchn.刻痕；等级；切口vt.赢得；刻凹痕；计分notched characteristic陷波特性notch bar bending test缺口弯曲试验notch impact toughness缺口冲击韧性Notch of apex of heart心尖部切迹Notched tubes and pins子母通notch tensile strength切口拉伸强度notch sensitivity test缺口敏感性试验,切口敏感性试验,缺口脆性试验,切口脆性试验notch rupture strength切口试样持久强度notch of channel steel槽钢冲缺口notch-bar impact test凹口冲击试验