The vibration equation for thin flat plane loudspeaker with single point drive and four corners fixed is deduced and its simple harmonic vibration frequency in this condition is analyzed.
推导了固定四角薄型平板扬声器在单点激励下的振动方程，分析了在受激情况下的简正频率，并由简正频率方程导出其受力方程。
No single point of failure: you can pop out a drive and the array will continue to function (albeit with a performance hit, known as "degraded mode"). Replace the drive and it will rebuild itself.
没有单点故障：你可以将其中的某块盘拔出而不影响磁盘阵列继续正常服务(虽然性能会有所下降，即所谓“降级模式”)，当你替换某块盘后RAID也会进行重建。
Before that only a single contact with the tape drive (only a box of tapes), hoping that the specific point of the best, thank you.
之前只接触过单一的那种磁带机(只能放一盒磁带)，如果能具体点最好了，谢谢。
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