目前它们被发现在一些碰撞和研磨中产生，可见程度无非是高中实验室显微镜的水平。
Now they've been found in something that bumps and grinds, visible with nothing fancier than a high school lab-issue microscope.
锥度研磨：研磨锥度表面的工艺，很大程度上依赖于蓝图的设计规范。
TAPER GRIND: Grinding process which produces angled surfaces, may be intentional or unintentional depending on blueprint specifications.
锥度研磨：研磨锥度表面的工艺，很大程度上依赖于蓝图的设计规范。
TAPER GRIND: Grinding process which produces angled surfaces, may be intentional or unintentional depending on blueprint specifications.
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