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螺旋星云
释义
螺旋星云
Encyclopedia
理学
行星状星云
释
Helix Nebula
螺旋星云
位于宝瓶座,标准历元J2000的赤经22h29m38.54s,赤纬-20°50′13.64″的行星状星云。《星云星团新总表》中的编号为NGC7293,是离地球最近最明亮的行星状星云。
Astronomy
Helix Nebula
螺旋星云
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between-group sum of squares
between-group variance
betweenness
betweenness group
betweenness relation
betweenness semigroup
between relation
between-subjects design
Between the Acts
between-the-lines attack
Between the stage and the screen
Between tough two
Betz limit
BET吸附等温式
BET方程
BET比表面积
BET等温线
Beurling
Beurling algebra
Beurling function
Beurling generalized distribution
Beurling-Kunugui theorem
Beurling-Lax theorem
Beurling theorem
BeV
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