The spiral groove of pipe is formed by press die.

采用冲压模具实现了管材螺旋槽成形.

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Now the commonly used seal groove is a logarithm spiral groove.

现在的密封槽型比较常用的是对数螺线槽.

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Spiral groove is not slotted part of the outer ring called the sealing dam.

螺旋槽外圈未开槽的部分称作密封坝.

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The two's spiral groove can coordinate to form the approximate circular section the spiral tubular channel.

二者的螺旋槽能配合形成近似圆形断面的螺旋管状通道.

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Asymmetric dual - angle milling cutter used to point chutes, and inclined spiral groove, level surface.

不对称双角铣刀用来铣削角度槽 、 斜面及螺旋沟 、 台阶面.

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