他已经看到了斯皮策太空望远镜在红外波段捕捉到的这类温热尘环的证据。
He has seen evidence of these warm dusty rings in infrared radiation picked up by the Spitzer space telescope.
因此，他认为“一个趋势的清醒的认识，波段操作”非常重要的。
Therefore, he considered "a clear understanding of trends, band operation" very important.
他设计了一个红外波段消色差共形光学系统。
An achromatic conformal optical system working within infrared waveband was designed by him.
他买了一台九波段的收音机。
他买了一台九波段的收音机。
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