The micro-generator based on MEMS technology becomes a research focus for its small volume and long lifetime .

基于MEMS技术的微发电机 体积小、可 长期 使用，成为研究的热点。

On the basis of diseases occurring on freeway with mass - traffic volume the paper puts forward combinative treatment schemes for pavement intermediate maintenance improving driving conditions and prolonging lifetime .

根据大交通 量高速公路出现的病害特性，提出了综合性的路面中修处理方案，改善行车条件，延长 使用 寿命。

The free volume the electric conductivity and their relationship of poly ( ethyl naphthalate )( PEN ) have been studied by use of the Positron Annihilation Lifetime Spectrum ( PALS ) and the Thermal Stimulated Current ( TSC ) .

用正电子湮没 寿命谱（ PALS）及热释电（TSC）方法相结合研究了γ－辐照聚（2，6萘二甲酸乙二酯）（PEN）。

Effects of toughening agent and temperature on the free volume and mechanical properties were studied by positron annihilation lifetime spectroscopy ( PALS ) and dynamic mechanical analysis ( DMA ) for a serious of epoxy resin samples with different toughening agent content ( W / W ) .

用正电子 湮没方法（PALS）和动态力学分析（DMA）方法研究了增韧剂和温度对环氧树脂的自由 体积和力学性能的影响。

If B added up to 2.22 at . - % more defects having larger free volume were induced by boride eutectic occurred along grain boundaries and grain interior thus the positron lifetime in vacancy-like defects mean lifetime and S parameters increased remarkably .

硼量为 2.22at.-%时，缺陷态的τ显著增长，■和S参数增大，表明在晶界成晶内析出硼化物，诱发了较多的自由 体积较大的缺陷。

This supply demand large capacitance under miniature volume large ripple current resistance law impedance under high frequence long lifetime under high temperature and suitability for high density mounting from aluminium electrolytic capacitors used for it .

相应地要求铝电解电容器小型 大容量化，耐纹波电流，高频低阻抗化，高温度长寿 命化和更适应高密度组装。