单词	left-hand thread tap
释义	left-hand thread tap 左旋螺纹丝锥
随便看	system of holding responsibility system of holdings system of home study system of homogeneous equations system of homogeneous linear equations System of homogeneous liner equations system of homogenous equations system of honest-credit system of household system of household registration System of HS-WEDM system of human nature system of human resources management system of hydrogen gas system of hyperbolic equations system of iatrical commissionaire system of idea system of identification system of immobilization system of imperial examinations system of imperial succession system of implicit iteration system of implicit iteration process system of import and export license system of imprimitivity