This paper expounds the necessary and main tasks information about the HALT and HASS test systems. Comparative analysis on the design procedure of stress source normally used is introduced. At last, it analyzes the application area and prospect of HALT and HASS test systems.% 本文阐述了 HALT&HASS 试验系统的必要性及主要工作内容，比较分析了最常使用的应力源的设计过程，最后了分析 HALT&HASS 试验系统的应用面及其应用前景。
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