齿轮加工机床夹具
fixture of gear cutting machine
主汽轮机齿轮机组
main steam turbine gear unit
大型机床立柱
Column of the heavy machine tool
加工型大枣
jujube vaviety for processing
Free-form型锥齿轮机床
Free-form bevel gear machine
小齿轮轮齿啮合型式
pinion tooth contact pattern
型腔电火花加工机床
cavity sinking EDM machines
齿轮和螺纹加工机床
gear and thread cutting machine