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With a Elliptic Gears Mechanism serving as a front-position mechanism for the sheave wheel mechanism. 將橢圓齒輪作爲(wèi)槽輪機(jī)搆的前置機(jī)搆，可以減小角加速度以降低槽輪進(jìn)入和退出時(shí)的沖擊。