... normalizing factor归一化因子 north america nebula北美星云 north polar sequence北极星序 ...
双语例句
1
The emission region to the right of the NorthAmericaNebula is IC 5070, also known for its suggestive Outlines as the Pelican Nebula.
北美洲星云右边的辐射区域是IC 5070，由于其轮廓也被称为鹈鹕星云。
2
Many of the brightest deep sky objects also have "popular names" by which they're often referred to, such as "Andromeda Galaxy", "NorthAmericaNebula", "Blinking Planetary", and so on.
那些最亮的深空天体还有常用“俗名”，比如“仙女座大星系”、“北美洲星云”、“闪耀星云”等等。
3
On the left is an emission nebula cataloged as NGC 7000, famous partly because it resembles our fair planet's continent of NorthAmerica.