beded rock mass

例句：

1. 1. The geologistfound the bedded rock mass to bea significant indicator of the region'sgeological history.
   地质学家发现床下岩石体是该地区地质历史的一个显著指标。
2. 2. The construction crew carefully excavatedthe bedded rock mass to ensure thestability of the foundation.
   施工队小心翼翼地挖掘床下岩石体，以确保地基的稳定性。
3. 3.The bedded rock mass is an importantsource of minerals for mining operations.
   床下岩石体是采矿作业的重要矿物来源。