... backward diode 反背二极管 backward gear 倒挡齿轮 backward-curved-blade fan 后背曲叶式风机 ...
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倒挡中间齿轮 reverse idler gear
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根据国产某变速箱倒挡圆柱齿轮低载强化的试验结果，制定了对变速器具有强化效果的新磨合规范，并在新磨合规范下进行了试验研究。
The new running-in specifications of transmission, having the strengthening effect, was estimated by the results of strengthening under low amplitude load of single tooth bending of cylindrical gear.
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