Hexagon screw is a screw hole.

内六角螺钉是孔式螺钉的一种。

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The iPhone, quite obviously, is too thin for such a screw-hole.

很明显，太薄不能加这样的螺丝孔。

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B. Lateral rim of screw hole on CSBP is a weak area.

钉孔外侧缘是钢板薄弱和应力集中部位。

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B. Lateral rim of screw hole on CSBP is a weak area.

钉孔外侧缘是钢板薄弱和应力集中部位。

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