grate guard

例句：

1. 1. The fence was designed with a grate guard to prevent animals from climbing over.
   这道围栏设计有格栅防护，以防止动物爬过。
2. 2.The new security system includes a grate guard that can detect intruders.
   新的安全系统包括一个格栅防护装置，可以检测到入侵者。
3. 3. The grate guard on the roof is made of stainless steel and provides excellent protection against the elements.
   屋顶上的格栅防护是由不锈钢制成的，提供了极好的抵御恶劣天气的保护。