1. This paper presents a new method, the substructure analyzing method of interconnect-net, and analyzes the properties of LPDA. 文中介绍了互联网络子结构分析方法，并应用该方法对对数周期偶极天线进行特性分析。
2. The degree of reliability of rig derrick and substructure in different time is obtained by means of reliability evaluation of the zero failure data. 通过对石油钻机井架、底座无故障数据的可靠性评定，求得了不同时间状态下符合实际的可靠度。
3. Construction of the mud slab will be included in the Piling Contract. The Substructure Contractor should allow for breaking up and removal as and when required. 铺设泥土石板路面将包含在打桩合同中。如有必要，地下建筑承包商负责对其拆除与清理。
英英解释
n.
1. the basic structure or features of a system or organization
2. lowest support of a structure
