internally thin set

例句：

1. 1. The engineer analyzed the internal thin set of the building to determine its structural integrity.
   工程师分析了建筑的内部薄层以确定其结构完整性。
2. 2. The researcher found that the internal thin set of the soil was responsible for its high water retention capacity.
   研究人员发现土壤的内部薄层对其高保水能力负有责任。
3. 3.The scientist observed the internal thin set of the crystal structure and proposed a new model for its formation.
   科学家观察了晶体结构的内部薄层并提出了一种新的模型来描述其形成过程。