tie-in line

例句：

1. 1.The engineer used a tie-in line to secure the heavy equipment.
   工程师用一根绑线来固定重型设备。
2. 2. The carpenter tied-in a piece of wood to the wall for support.
   木匠把一块木头绑在墙上作为支撑。
3. 3.The painter used a tie-in line to create a seamless finish on the wall.
   画家用一根绑线在墙上创造出无缝的装饰效果。