矿山机械设备中大模数直齿圆柱形齿轮使用较多，当齿面磨损一定程度后就要报废，现介绍几种修整翻新复用技术。

Spur gears were used more in mine machinery equipment, they would be abandoned if wore out. Kinds of technology were introduced here.

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间隔件56不限于从内部面46处大致垂直地延伸，以及与空气通风帽44一体模塑成型或者具有通常的圆柱形状。

The spacers 56 are not limited to extended generally perpendicularly from the internal face 46, to being integrally molded with the air cowl 44 or to having a generally cylindrical-shape.

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该活塞部分(102)包括基本上圆柱形的头部(103)，该头部(103)包括配合面(105)。

The piston portion (102) includes a substantially cylindrical head portion (103) including a mating face (105).

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