suspension insulator-string

例句：

1. 1. The suspension insulator-string is essential for maintaining the electrical integrity of the power grid.
   悬挂绝缘线对于保持电力网的电气完整性至关重要。
2. 2. The engineer carefully inspected the suspension insulator-string to ensure its proper functioning.
   工程师仔细检查悬挂绝缘线，确保其正常工作。
3. 3. During maintenance, the technician replaced the damaged suspension insulator-string with a new one.
   在维护过程中，技术人员用新的悬挂绝缘线替换了损坏的线。