Used as a step stone, for example, the surface should be flat and rough, this kind of stone is convenient to walk, is not easy to damp.
例如，用作阶梯的石头其表面要平且粗糙，这种石头方便走路，潮湿的时候也不容易滑到。
The surface of the syringe must be clear and pure; rough edge, burr, plastic stream, defect are not allowed.
注射器表面必须清洁无杂质，不得有毛边、毛刺、塑流、缺损等缺陷。
This method not only ADAPTS to predicting the whole fractal dimension of rough surface, but also ADAPTS to estimating local fractal dimension.
这种方法比较简单而切实可行，不但适合于粗糙面整体分维的计算，更适合于局部分数维的计算。
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