通过所建理论模型及铣削试验讨论了铣削过程中强迫振动、颤振的产生条件及特点。
Through the theoretical model and milling experiment they discuss the condition of producing forced vibration and chatter in milling process and the chatter characteristics.
本文对超越性现象产生的条件、规律进行了试验和理论分析，丰富了超声波振动切削理论。
In this paper, the experiments and theoretical analyses are made about the occurring conditions and regularities of this phenomenon, which enriches the ultrasonic vibration cutting theory.
六月，一个乘员舱适配器(CMA)模拟器抵达nasa格伦的梅溪站进行检测，包括所有重要的声学和机械振动试验，模拟发射条件。
In June, a Crew Module Adapter (CMA) simulator arrived at NASA Glenn's Plum Brook Station for testing, including all-important acoustics and mechanical vibration tests to simulate launch conditions.
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