repeated fluctuating load的意思|示意

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交变脉动载荷

交变载荷 ... 交变应力repeated stre 交变载荷repeated fluctuating load 交叉带传动cro -beltdrive ...

交变脉动载荷 ... 交变力 alternating force 交变脉动载荷 repeated fluctuating load 交变模 alternate mode ...