要得到一个整洁的五角星可能需要一些试验，这取决于鞋子宽度和鞋孔大小。
It may take some experimentation to produce a pentagram with fairly even points, which will depend on the width of the shoe and the eyelet spacing.
结果发现：随撞击角的增加，弹坑的深度和宽度减小，而弹坑的长度增加；
The result indicates that the crater depth and width decrease and crater length increase with the obliquity increase.
结果表明，管胞直径和微纤丝角及生长轮宽度等指标表现为差异显著。
The results showed that there were distinct differences in micro-fibril Angle, width of growth-ring and tracheid diameter.
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