“low frequency exciting force”的概念、定义、翻译、参考文献-科学参考

单词	low frequency exciting force
释义	low frequency exciting force Encyclopedia 工学汽轮机振动释 low frequency exciting force低频激振力由于汽轮机轮周上某处汽流的方向或大小异常，叶片每经过此处所受到的干扰力。又称第一类激振力。
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