公比是对于等比数列这一特殊数列而言的，它是指在等比数列中后一项与前一项的商。
你无法控制，而开诚布公比遮遮掩掩效果更好。
You can't control, and revelation works better than concealment.
案例简介：“来，宝宝，跟外公比赛，看谁吃得快喏！”
Case introduction: "Come on girl, let's see who can eat faster, you or your grandpa."
本文分析了转速相对误差对转速数列公比的影响，并提出转速相对误差允许值的建议。
This paper analyzes how the relative errors of output speeds influences the steps of a geometrically stepped speed range and offers a suggestion on the permissible limits of the errors.
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