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极环

n.polar ring

极环

英-汉网络释义

极环

polar ring

极环(Polar Ring)星系 NGC 2685 Credit & Copyright: Ken Crawford (Rancho Del Sol Observatory) 明日的图片: light-weekend …

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Not visible here is unusual central polar ring of gas circling out of the plane near the galaxy 's center .

一罕有的中央气体极环这里并不能看到，极环盘旋于靠近星系中间的外侧平面。

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Over 20 million light-years away , its peculiar appearance marks it as a polar ring galaxy.

它距我们超过 2千万光年之远，其独特的外形给它带来了极环星系的名字。

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Theoretical Study on the Regioselectivity of Nitrile Oxide 1, 3-Dipolar Cycloaddition to Propyne

氧化腈与丙炔 1,3-偶极环加成反应中区域选择性的理论研究

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1, 3-Dipolar Cycloaddition of Methyl Pheophorbide-a and Synthesis of Chlorophyll Derivative

脱镁叶绿酸 -a 甲酯的 1,3-偶极环加成及其叶绿素衍生物的合成

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