Hole shapes: Round holes, long holes, triangle holes, oval holes.
孔形：圆孔、长孔、三角孔、椭圆孔、浅拉伸鱼鳞孔等。
Plane warping deformation and interior hole oval deformation occur easily for spread bevel gear at carburization and hardening.
螺旋伞齿轮在渗碳淬火时极易发生平面翘曲变形和内孔椭圆化变形。
The paper respectively studies the principles and features for profiling attachment and slider crank mechanism to be used as clamping apparatus to fabricate oval hand hole cover.
分别对凸轮靠模和曲柄滑块机构作为工装加工椭圆手孔盖的原理及特点进行了探讨。
The deflection Angle of the long shaft of the oval relative to the aspiration hole is preferably 10 degree at both sides.
该椭圆的长轴在吸气孔附近，相对于吸气孔的偏转角度较佳为两侧各10度范围内。
The deflection Angle of the long shaft of the oval relative to the aspiration hole is preferably 10 degree at both sides.
该椭圆的长轴在吸气孔附近，相对于吸气孔的偏转角度较佳为两侧各10度范围内。
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