Lubber's line

例句：

1. 1. The engineer used Lubber's line to connect the two towers.
   工程师使用卢伯尔的线将两座塔连接起来。
2. 2. The construction crew followed Lubber's line to ensure safety during the excavation.
   施工团队遵循卢伯尔的线以确保挖掘过程中的安全。
3. 3. The painter carefully followed Lubber's line on the canvas.
   画家仔细遵循画布上的卢伯尔的线条。