The purpose of this thesis is to study the large range low frequency vibration control of Benfield system frame in Jianfeng Ammonia plant.
本文的研究目的是控制建峰化肥厂合成氨装置苯菲尔框架大幅低频振动。
参考来源 - 苯菲尔框架低频振动控制研究·2,447,543篇论文数据，部分数据来源于NoteExpress
High frequency vibration removes submicron particle instantly without damaging wafers.
高频振动去除亚微米颗粒即刻不损坏晶圆。
In this paper low-frequency vibration problems of rotating machinery are investigated.
应用时频分析方法研究了回转机械低频振动问题。
Ulcerative colitis; Electromagnetic therapy instrument with low frequency vibration; Efficacy; Safety.
溃疡性结肠炎；低频振动电磁治疗仪；疗效；安全性。
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