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单词
夜天光
释义
夜天光
Encyclopedia
理学
夜天光
释
night sky light
夜天光
太阳落入地平下18°以后的无月晴夜,在远离城市灯光的地方,夜空所呈现的暗弱弥漫光辉。又称夜天辐射。在测光工作中,常称之为天空背景或夜天背景。
理学
大气光象
释
nightglow
夜天光
天文晨影始前,昏影始后,夜空中呈现的暗弱弥漫光辉。又称夜天辐射、夜天背景。
Astronomy
night glow; night sky light; light of the night sky
夜天光
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drill hole
drill-in fluid
drilling
drilling accident
drilling accident handling
drilling and blasting method
drilling and blasting method of rock engineering
drilling and block
drilling application
drilling assembly
drilling auxiliary appliance
drilling benefit index
drilling blowout
drilling blowout rescue technology
drilling chemical
drilling complicacy
drilling core
drilling core gamma-ray documentation
drilling coring
drilling coring logging technology
drilling efficiency index
drilling engineering
drilling engineering design
drilling engineering economic evaluation
drilling engineering economic evaluation indicators
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