inner rope

例句：

1. 1. The engineer carefully measured the length of the inner rope before installing it.
   工程师仔细测量了内绳的长度，然后才安装它。
2. 2. The inner rope was used to guide the heavy object through the tight space.
   内绳被用来引导重物穿过狭窄的空间。
3. 3.The inner rope was securely fastened to prevent any accidents during the construction process.
   内绳被安全地固定住，以防止施工过程中发生任何事故。