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primary suspension是什麽意思

primary suspension

英[?praim?ri s?spen?n]

美[?pra?m?ri s?sp?n?n]

[詞典] 第壹系彈簧,懸掛;

[例句]Influence of mass location between primary suspension and secondary suspension on locomotive riding quality

簧間質量質心位置對機車運行平穩性的影響