We try to refit grinding machine and install an attachment which can do reasonable distribution of the movement so that workpiece and cutting tool complete coordinated movements.

从等距型面轴曲线轮廓特点出发，研究了等距型面的曲线方程，尝试对磨床进行改装，给磨床安装一附件进行合理的运动分配，使工件与刀具完成协调运动，加工出等距型面轴。

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As an alternative or in addition, the attachment of a tool is advantageously possible.

有利的是，可以替代地或附加地装配工具。

youdao

Indeed, although attachment parenting comes with an exquisite progressive pedigree, it is a perfect tool for the political right.

WSJ: Erica Jong on the Madness of Modern Motherhood

Square, a mobile app and phone attachment created by one of the founders of Twitter, is gaining traction as a tool for small businesses to accept credit-card payments and this month signed a deal with Starbucks for the coffee behemoth to begin accepting payments through the app.

CNN: Doug Gross,