roller guide是什么意思 roller guide怎么读
roller guide的用法和样例
- The pillay vertical guideway is a preloading roller guide way which is made of quenchinghardening inserted steel.It si portable in movement and sensitivein feeding.
立柱垂直导轨采用镶钢淬硬予加负荷的滚针导轨，移动轻便，进给灵敏，且具有快速升降。
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