graded cable

例句：

1. 1. The new building uses graded cables for its electrical system.
   这座新建筑使用分级电缆来电气系统。
2. 2.The engineer carefully inspected the graded cables for any damage.
   工程师仔细检查了分级电缆，以查找任何损坏。
3. 3.The graded cables were installed in a way that minimized the risk of fire.
   分级电缆被安装的方式最小化了火灾的风险。