Vibratory conditioning technology ( VCT ) was used in the routine electro - slag welding ( ESW ) for the first time.

首次将振动调制工艺应用到常规 电渣 焊中.

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The effect of Variable Cam Timing ( VCT ) on the gasoline performance was simulated by using software WAVE.

应用WAVE整机性能分析软件研究了某汽油机的可变气门相位对发动机性能的影响,提出了优化的进、排气相位.

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