在加工允许的范围内，螺旋角取较大的数值，能够较好地改善啮合性能，从而发挥二次包络TI蜗杆传动的优势。
Within the range of machining, if the helix Angle adopts a bigger value, it may improve the meshing performance and develop the advantages of double enveloping TI worm gearing.
在加工允许的范围内，螺旋角取较大的数值，能够较好地改善啮合性能，从而发挥二次包络TI蜗杆传动的优势。
Within the range of machining, if the helix Angle adopts a bigger value, it may improve the meshing performance and develop the advantages of double enveloping TI worm gearing.
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