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The design of the rotary supporting structure

by:Waxing     2020-11-16
References: [1] NiQingXing huan-yong wang. Hoisting machinery [M]. Shanghai: Shanghai jiaotong university press, 1990 [2] He Rong. 200 t hydraulic covered with crane slewing mechanism of rotary support selection calculation [J]. Journal of heavy machinery science and technology, 2007, 12. Source: 'the perspective of a land bridge in 2017
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