单词	step drill
释义	step drill 分级钻头,阶梯钻头
随便看	reduced set reduced share reduced silver reduced-size reduced size drawing reduced-size liver transplantation reduced-size lung transplantation reduced smoke propellant reducedsodium reduced-sodium reduced source reduced space reduced span of cave for underground hydropower house reduced specimen reduced spectrum ratio reduced speed reduced speed repeating signal reduced speed siganl reduced speed signal reduced state reduced state classification reduced state diagram reduced states reduced statistical operator reduced steam 救死扶伤救死扶危救民于水火救民水火救火扬沸救火投薪救火拯溺救灾恤患救焚投薪救焚拯溺 02098 02099 02100 02101 02102 02103 02104 02105 02106 02107