Then a new method is proposed to measure indirectly cutting angles of drills with arbitrary point geometry by measuring the curve of the main edge projected.

以此为基础，提出一种通过测量主刃投影曲线间接测量主刃各点切削角度的新方法，较好地解决了任意刃形钻头切削角度的测量问题。

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That edge is the main reason why no U.S. soldier has been killed by hostile aircraft since the Korean War, and no U.S. pilot has been downed by an enemy plane since the Vietnam War.

FORBES: Massive Cost Estimate For Fighter Program Is Misleading

With only 13 minutes remaining Sylla was first to the rebound when Maloney's curling free-kick from the edge of the box struck Main's right-hand post.

BBC: Celtic narrow gap

With a study released this morning, Vertex Pharmaceuticals cemented a key advantage in what is expected to be a booming new market for hepatitis C drugs this morning, increasing its edge over Merck, its main competitor.

FORBES: Vertex's Big Advantage