cementless insulator

例句：

1. 1. The engineer designed a cementless insulator for the new bridge.
   工程师设计了一种新型的无水泥绝缘体桥梁。
2. 2.The construction company used cementless insulators to reduce the weight of the tower.
   建筑公司使用无水泥绝缘体来减轻塔的重量。
3. 3. The engineer explained that cementless insulators are more durable and efficient than traditional ones.
   工程师解释说，无水泥绝缘体比传统的更耐用、更有效。