This article introduced the double pin roll breaker's survey and the tooth profile and the roller tooth arrangement design situation analysis briefly.

介绍了双齿辊破碎机的概况和齿形与辊齿布置设计情况。

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Instead of giving your ATM card and PIN code, the card can double as a credit card with a signature authorization.

不用交出你的ATM卡和PIN密码，只需获得信用卡签名的授权，你就可以使用信用卡。

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A double pronged pin used to hold women's hair in place.

使妇女头发在适当的位置的双重尖端分叉的针。

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"There was so much trouble around the green , and the green sloped heavy from the back to the front, so if you hit the ball pin-high it could be a double-bogey very easily, " Casper said.

WSJ: Billy Casper, Standing in the Shadow of Legends | Golf Journal