词组、短语、俚语及习惯用语• emission angle
发射角。• emission at par
平价发行法。• emission band
放射频带,发射谱带。• emission cell
外光电效应光电管,发射光电管。• emission centre
发射中心。• emission characteristic
发射特性。• emission characteristic curve
发射特性曲线。• emission control equipment
排放控制设备。• emission control regulations
排放控制法规。• emission current
放射电流。
emission nebula
emission-nebula的词性:
n.(名词)
1. A nebula that absorbs ultraviolet radiation from stars and reemits it as visible light.
发射星云:吸收星体的紫外线辐射并且转变成可见光放射出来的星云