primary suspension是什么意思

primary suspension

英[?praim?ri s?spen?n]

美[?pra?m?ri s?sp?n?n]

[词典] 第一系弹簧，悬挂;

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

簧间质量质心位置对机车运行平稳性的影响