circular poles

• 环形电杆

circular poles的用法和样例：

例句

1. This preservative has given excellent performance as a treatment for transmission poles.
   这种防腐剂作为通讯电杆的处理剂具有很好的性能。
2. Uprooted trees and fallen power poles lay in a heap after a tornado swept through Americus, Georgia.
   一场龙卷风肆虐乔治亚州阿梅里克斯市后，连根拔起的树木和倒下的电杆积压成堆。