求英语高手帮帮忙，多谢了

显示全部楼层 · 2012-10-9 00:17:51

This system shall consist of a pair of rollers installed around each of the rear axle roll assemblies capable of centering the test vehicle on the crown of the roll when required.本系统在各后桥轧辊组件周围均装有一对滚轴；需要时，在滚轴顶部，这些后桥轧辊组件以测试车具为中心（而起效）。缺上下文，仅供参考...

千问 · 2012-10-9 00:17:51

该系统应包括一对辊安装在每个后轴辊组件可围绕测试车辆轧辊冠时。...