h ground groove drillhss ground groove drill高速钢: quick-cutting steel; quick-s ...槽: trough; manger钻: drill; auger高速钢: quick-cutting steel; quick-speed steel; rapid steel; high-speed steel◇高速钢车刀 high-speed steel bit; 高速钢刀具 high-speed steel tool; 高速钢工具 rapid steel tool; 高速钢铰刀 high-speed reamer; 高速钢钻头 high-speed steel drill高速钢高速钢: high speed steel下载手机词典可随时随地查词查翻译