total reduction gear ratio 总传动减速比
gear reduction ratio 齿轮减速比
Final reduction gear ratio 最终传动减速比
overall reduction gear ratio 总减速比
steering gear reduction ratio 转向齿轮机构降速比
high-ratio reduction gear unit 高减速比齿轮箱
main gear reduction ratio 主减速比
high ratio reduction gear 高速比减速机
The primary drive gear(crankshaft gear)and the primary driven gear are the source of noise due to their high speed and bigger reduction ratio.
作为摩托车初级传动的曲轴齿轮及初级从动齿轮，由于转速高及降速比大，是产生噪声的主要因素。
The V belt wheels of noise experimental table of main carriage reduction gear must suit drive ratio, be lightest in weight and least in moment of inertia .
为降低轿车主减速器噪声测试试验台本底噪声，其传动系统采用了四对三角胶带传动。
Pressed and welded steel banjo housing, single reduction, hypoid gear, ratio 6.33:1.
冲压，焊接钢班卓琴住房，单减少，双曲面齿轮，比6.33：1。
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