One reason this is hard is that radio telescopes must chop the spectrum into fine portions to study it, like tuning into a signal on a car radio.

研究工作进展困难的一个原因是，正如汽车收音机的调频一般，射电望远镜必须把光谱按照波段分成易于研究的片段。

youdao

Open tomato can, heat it and season (if necessary). Chop some onion and melt some cheese in it would be fine.

打开番茄罐头，稍微加热，顺便依个人喜好调味或勾芡甚么的。加点洋葱，融点起士在其中，挺美好。

youdao

Open tomato can, heat it and season (if necessary). Chop some onion and melt some cheese in it would be fine.

打开番茄罐头，稍微加热，顺便依个人喜好调味或勾芡甚么的。加点洋葱，融点起士在其中，挺美好。

youdao