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单词
Helix Nebula
释义
Helix Nebula
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
随便看
triplen
triple of points
triple of vectors
triple pass
triple-phase asynchronous motor
triple point
triple pole
triple-pomeron
triple-porosity media
triple product
triple product identity
triple quadrupole
triple quasar
tripler
triple root
triple scalar product
triple sequence
triple series
triple stage quadrupole mass spectrometer
triple-stage quadrupole mass spectrometer
triple-stage quadrupole mass spectrometer (TSQ-MS)
triple star
triple state
triple superphosphate
triple system
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更新时间:2026/10/7 1:48:36