叶轮后盖 impeller back shroud
后齿轮盖 rear gear cover
后轮盖
Rear wheel cover
以上为机器翻译结果，长、整句建议使用 人工翻译 。
车底踏板采用高级合金制造，车杆和后轮盖（刹车）刹车采用高强度钢管制造，美观坚固。
The pedal of its bottom is made of advanced alloy, and the pole and rear-wheel cover are made of high strength steel tube, which looks quite beautiful and firm.
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