refractory cover
英
美
- cover n.封面;盖子;套子;表面v.覆盖;涉及;包含;掩护;给…保险
- refractory adj.不听话的;执拗的;难治疗的;免疫的;耐火的n.倔强的人;耐火材料
- The injection mould for a duplicator cover plate is designed.
设计了复印机盖板的注塑模具。
- Remove the cover plate of the relief valve by removing the four connecting screws.
通过拆卸四个连接螺丝来拆卸安全阀盖板。