1.石工用的宽凿
1.a stonemason's broad chisel for rough work
2.somebody whose job is stamping or pressing designs into leather
1.The Optimization of Feeding Tooler Vertically in NC Milling Machine
数控铣床加工垂直进刀方式的优化
2.Development of boring and rolling tooler for machining deep hole
用于加工深孔的组合镗滚刀的研制