双振动给料，效率更高。
High efficiency is due to double vibration feeding material.
研究者在对患者的上肢和下肢做触觉试验时扫描了大脑，试验是用两个振动的碟对双侧肢体同时进行一定频率和强度的刺激。
Researchers scanned their brains while doing touch-tests on their arms and feet, using two vibrating discs to stimulate both sides of the body while controlling for frequency and vibration.
本文概要论述了双轴惯性振动机构，两自由度动态模型的分析和优化方法。
After a brief description of the inertia vibrating mechanism with twin axles, the analysis and optimization method of dynamic model with two degrees freedom.
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