Recent experimental evidence has shown that laser pulses tuned to the right frequency can kill certain viruses.
最近的实验证据表明，调到适当频率的激光脉冲可以杀死特定的病毒。
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Big Windows looking out and the stairwell platform keep the tension between city and Bund at just the right frequency.
大型落地窗和楼梯平台使城市和外滩之间保持适度的张力。
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