一个有锋利边缘的指示器和带反射弧光灯能够使读数非常清楚，能够避免视觉误差。
Sharp edge of a reflex arc lamp indicator and band can make reading very clear, to avoid the visual errors.
这就意味着，这些不断生长的牙齿，可以有规律地脱落磨损部分，以保持边缘锋利。
This means the teeth, which grow continuously, can regularly shed damaged areas to keep a well-honed edge.
我并不知道轮椅坡道有锋利的边缘，但事情就是如此——至少这条坡道是这样的，坡道边缘正好切开了她的小腿。
I didn't know that wheelchair ramps have sharp edges, but they do-at least this one did, and it sliced her shin right open.
固定的：问题的枢纽边缘有一个锋利的碗状切。
它们有统一的尺寸，锋利的边缘和光滑的表面，所以很容易放置。
Having uniform dimensions, sharp edges and smooth surfaces, they are easy to lay.
它们有统一的尺寸，锋利的边缘和光滑的表面，所以很容易放置。
Having uniform dimensions, sharp edges and smooth surfaces, they are easy to lay.
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