The purple emission is multi-million degree gas detected in X-rays by NASA's Chandra X-ray Observatory and the other colors show galaxies in an optical image from the Sloan Digital Sky Survey.

其中紫色喷发状物质是几百万度高温的气体，由Chandra X射线天文中心探测；其他颜色展示了斯隆数字星空调查的光学图片中的一些星系。

youdao

We use the multi-wavelength solar spectrograph of the Purple Mountain Observatory to observe the spectra of solar flares.

我们用紫台多波段太阳光谱仪进行耀斑光谱观测。

youdao

Purple iron foot, multi-cracked-off patterns, such as roe.

有紫铁足，多断纹隐裂如鱼子。

youdao

But sitting on the plush purple seating on the 120ft yacht Sheleila, Mr Appleyard denies that allowing people onto multi-million-dollar boats for a few dollars a time cheapens his brand.

BBC: Group buying online shopping trend hits the Middle East