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astronautics
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astronautics
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astronautics
航天学
研究航天基本原理和指导航天工程实践的综合性技术科学。又称宇宙航行学或宇航学。
Physics
交叉学科
天体物理学
astronautics
宇航学
astronautics
航天学,宇宙航空学,星际航空学
Astronomy
astronautics
宇航学
随便看
emission sources
emission spectrographic analysis
emission-spectroscopical
emission spectroscopy
emission spectrum
emission standard for industrial enterprises noise at boundary
emission standard for ocmmunity noise
emission standard of air pollutants for fossil-fired power plant
emission standard of environment noise for boundary of construction site
emission standards and measurement methods of railway noise on the boundary alongside railway line
emission standards for stationary sources
emission trading scheme
emission trading system
emission value
emission variable
emissive
emissive heat
emissive power
emissivity
emissivity calibration
emissivity measurement
Emissivity Measurement by Measuring Eimissions
emit
emitron
emittance
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