对柴油机轴系扭振的研究，以往是先建立扭振当量系统，然后进行自由振动与强制振动计算。
In the previous research on torsional. vibration of diesel engine shafting system, an equivalent system must be defined before calculating free vibration and forced vibration.
为应对铁路货车铆钉质量强制抽验的要求，设计研制出哈克铆钉横向振动试验台。
Huck rivet transverse vibration test rig is designed and developed to adapt mass coercive spot-check of railway truck.
研究证明，采用振动搅拌与强制搅拌相结合的方案，结构紧凑，可明显提高搅拌质量和搅拌效率。
Finally, it is indicated that a compact combination of vibratory mixing and forced mixing technqiues will promote mixing quality and efficiency.
采用强制式风冷来冷却振动电机，快速降低电机温度，提高电机效率，延长使用寿命。
The use of compulsory air to cool the vibrating motor, fast to reduce motor temperature, improve the electrical efficiency, long life.
采用强制式风冷来冷却振动电机，快速降低电机温度，提高电机效率，延长使用寿命。
The use of compulsory air to cool the vibrating motor, fast to reduce motor temperature, improve the electrical efficiency, long life.
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