notcher断屑器
notchn.刻痕;等级;切口vt.赢得;刻凹痕;计分
notching of splice bars鱼尾板上道钉槽
notched serrated sickle锯齿式镰刀
notched impact specimen缺口冲击试样
notch wood with a knife用刀在木头上刻V形凹痕
notched impact strength切口冲击强度
notched semaphore blode鱼尾形臂板
notched bar impact test缺口冲辉验,凹口冲辉验
notch sensitivity ratio凹口敏感比
notch-bar cooling bed齿条式冷床
notched and cogged joint槽口榫接