Therefore, it is necessary to determine the appropriateness of ultrasonic fatigue test for researching the effect of frequency on giga-cycle fatigue properties for structural materials.
因此，研究超声加载频率对结构材料超高周疲劳性能的影响，从而确定加速疲劳实验的妥当性十分必要。
2
GIGA is also heavily invested in the research and development of Life-Cycle analysis systems for buildings.