求翻译：为保证齿轮优化设计的可靠性，要求齿根受拉侧的弯曲疲劳应力不超过齿轮的许用弯曲应力235MPa，即齿根实际所受的最大Mises等效应力小于235MPa；根据设计要求，齿宽系数取0.22～0.35。是什么意思？

Optimal Design of gear to ensure the reliability required by the pull side of the tooth root bending fatigue stress does not exceed the allowable bending stress of gear 235MPa, which suffered the greatest actual tooth root Mises equivalent stress is less than 235MPa; according to design requirements

In order to guarantee the reliability optimization design gear tooth root, requested by the side of the gear of the bending fatigue stress does not exceed allowable bending stress 235 MPa dental roots, that is actually the biggest Mises edge effects, such as less than 235 MPa; according to the desig

In order to guarantee the gear optimizes the design the reliability, requests the tooth root to pull the side the bending gatigue stress not to surpass the gear permitting with bending stress 235MPa, namely the tooth root actual receives the biggest Mises equivalent stress is smaller than 235MPa; Ac

Guaranteeing optimal design of gears reliability, requiring tensile lateral tooth root bending fatigue stress do not exceed allowable bending stress of gear 235MPa, tooth root effects such as maximum Mises forces actual 235MPa; under design, tooth width coefficient 0.22~0.35.

Optimal Design of gear to ensure the reliability required by the pull side of the tooth root bending fatigue stress does not exceed the allowable bending stress of gear 235MPa, which suffered the greatest actual tooth root Mises equivalent stress is less than 235MPa; according to design requirements