refractory cover

• 耐火盖板

refractory cover的用法和样例：

例句

1. The injection mould for a duplicator cover plate is designed.
   设计了复印机盖板的注塑模具。
2. 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。