单词understructure
n.: 基础
网络: 下层结构；底座结构
下部结构
基础,下层结构
Logic empiricism gave the understructure of dynamic research about history of science based on structural analysis on knowledge.
逻辑经验主义对知识的结构学分析，为科学历史的动态研究奠定了基础。
Choosing and Construction for External Waterproofing Materials in a Large Understructure Work
大型地下工程外墙防水材料的选用及施工
Random seismic response and extremum analysis of understructure bending
地下结构弯曲随机地震响应和极值分析
Research fields: Analysis of the Tunnel and Understructure
研究方向：隧道与地下工程结构分析
Influence of Marine Environment on Bridge Understructure
海洋环境对桥梁下部结构的影响
Study on the reasons caused cracking and leakage of understructure work and precaution measures
地下工程裂漏原因分析与防治方法探讨