查看会员资料
用 户 名:龚***
发送消息- Email:用户隐藏
- Icq/MSN:
- 电话号码:
- Homepage:
- 会员简介:
最新会员发布资源
lundui
- 参照铁标,采用测力轮对测量轮轨力,测力轮对每个轮上一周的垂直力和横向力的测力点都不得少于二点。-Referring iron standard, using force on wheel-rail force measuring wheel, measuring wheel for a week and a vertical force on each wheel lateral force dynamometer points are not less than two points.