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古姆星云
释义
古姆星云
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理学
原行星状星云
释
Gum Nebula
古姆星云
已知的最大角尺度的发射星云。延展角度大约40°(月亮在天空中的尺度为0.5°),横跨南天船帆星座和船尾星座。又称Gum 12。
Astronomy
Gum Nebula
古姆星云
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laser ceramics
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laser cladding
laser cladding equipment
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laser coatings
Laser collimator
lasercom
laser communication
laser communication payload
laser communication payload capture and tracking subsystem
laser communication payload communication subsystem
laser condition
laser conductive welding
laser confocal microscope
laser confocal microscopy
laser control of chemical reactions
laser-conversion efficiency
laser cooling
lasercooling
laser crystals
laser cutting
laser cutting technology
laser damage
laser debris removing
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