直齿锥齿轮一般要在专用机床上加工，但能够加工大型直齿锥齿轮的生产企业极少。
The straight subulate gears are commonly been machining on special machine tool, but the factories of machining the large-size straight subulate gears are rather less.
直齿锥齿轮一般要在专用机床上加工，但能够加工大型直齿锥齿轮的生产企业极少。
The straight subulate gears are commonly been machining on special machine tool, but the factories of machining the large-size straight subulate gears are rather less.
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