One of the main objectives of this study is to develop a generic thermo-mechanical durability model for Pb-free solders.
这项研究的主要目标之一是建立一个通用的热机械为无铅焊料的耐久性模型。
Aerogel material has lower thermal conductivity and performs best in the atmosphere of Mars, but the problems of dust control and mechanical durability cannot be avoided.
气凝胶类材料具有较低的热导率，在火星大气环境下具有最好的隔热性能，但无法规避粉尘污染及机械耐久性等问题。
The design of tower structures foundation is more complicated than common structures, and it is difficult to study tower structure mechanical durability and diagnose its defects.
相对一般结构而言，高耸工程结构的基础设计更为复杂，其力学耐久性研究和病害诊断也更显困难。
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