digger chain

例句：

1. 1.The digger chain is essential for theconstruction of roads and bridges.
   挖掘机链对于道路和桥梁的建设至关重要。
2. 2. The digger chain was used to clear away thedebris from the site.
   挖掘机链被用来清理现场的碎片。
3. 3. The digger chain was damaged duringthe construction process.
   在施工过程中，挖掘机链受损了。