axle wire

例句：

1. 1.The axle wire is the thin metal part that connects the wheels together.
   轴心线是连接车轮的薄金属部分。
2. 2.The car's suspension system relies on the axle wire to distribute weight evenly.
   汽车的悬挂系统依靠轴心线来均匀分配重量。
3. 3. The engineer carefully measured and adjusted the axle wire to ensure proper alignment.
   工程师仔细测量并调整了轴心线，以确保正确对齐。