valve spring collar的意思|示意
阀（弹）簧座环
valve spring collar的网络常见释义
阀弹簧座环 ... upper valve spring collar 气门弹簧上环 valve spring collar 阀弹簧座环 lower valve spring collar 气门弹簧下环 ...
valve spring collar相关短语
1、 lower valve spring collar 气门弹簧下环
2、 upper valve spring collar 气门弹簧上环
3、 valve-spring retaining collar 气门弹簧座圈