tow chain

例句：

1. 1.The tow chain was used to pull the heavy boat up onto the dock.
   用拖链将沉重的船拉上码头。
2. 2. The tow chain was essential for safely moving the heavy equipment across the river.
   拖链对于安全地移动重型设备过河至关重要。
3. 3.The tow chain was a crucial part of the emergency response team's plan.
   拖链是紧急响应团队计划中的关键部分。