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galaxy
释义
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释
galaxy
星系
由引力束缚在一起的几百万至几万亿颗恒星以及星际气体和尘埃、暗物质等构成的天体系统。空间尺度几千光年至几十万光年。银河系就是一个普通的星系。银河系以外的星系称为河外星系,统称为星系。
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天体物理学
galaxy
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>天体物理学>释义
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Astronomy
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weapon system performance evaluation
weapon system reaction time
weapon system requirement analysis
wear
wearability
wearable
wearable clothing design
wearable computer
wearable computing
wearable device
wearable devices for intelligent analysis
wearable electronic device
wearable map
wear allowance
wear and tear of fixed assets
wear index
wearing-off
Wearing Shoes in Yi Bridge
wearing surface
wear-leveling
wear loss
wear mechanism
wear of heating surfaces
wear of polymer
wearometer
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