下面的讨论中假定轮齿加工没有误差，轮齿表面完全光滑，轮齿为绝对刚体。
The following discussion assumes the teeth to be perfectly formed, perfectly smooth, and absolutely rigid.
斜坡内完全光滑的玻璃表面，确保自然光线可以照进生活空间，并随着其长度提供私人庭院的景色。
The ramp's entirely glazed internal surface ensures natural light floods into the living Spaces and provides views of the private courtyard along its length.
“使用镊眉夹尽量使眉毛下面的区域看起来完全光滑。” 宾诺尔（Venoit）这样提议，他的客户包括凯特·莫斯和丽芙·泰勒。
"Make sure the area under brows is completely smooth after tweezing, " recommends Venoit, whose famous canvases include Kate Moss and Liv Tyler.
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