Boeing also confirms that ground vibration testing were concluded last week on the second test aircraft, ZA002.
波音表示，地面振动测试已经于上周在第二架测试飞机- ZA002上完成。
The frequency spectral analyses show that the second ignition method could weaken and restrain the high frequency vibration, improve the characteristic of vibration in high loading density charge.
压力波的频谱分析表明在高装填密度装药中，采用第二种点传火方案能削弱和抑制压力波的高频振荡成分，改善其振动特性。
You know better now than to think for even a second, of matters that will bring down your vibration.
你更懂得“现在”成功比起再做第二次更好，因为这些事情也在降低你的振动。
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