银河星云 meaning in English
galactic nebula
Examples
- Galactic nebulas are masses of diffuse material within our galaxy .
银河星云是我们星系中的一团团弥散物。 - Some celestial bodies similar to galactic nebulas but without any luminosity sometimes reveal their presence as dark patches obscuring the light of stars beyond them .
某些与银河星云相似但不发光的天体，有时看来象块黑色补丁，遮住了周围的星光。 - When taking photographs of the sun , the slowest film of speed iso25 is used . for moon , lunar eclipses and total solar eclipses , film of speed from iso100 to iso400 is suitable . whereas film of speed from iso400 to iso3200 fits for shooting star field , the milky way , nebulae , star clusters , galaxies and comets
拍摄太阳可以选用最慢速的底片2 5度拍摄月球日食及月食可选用中速1 0 0度至高速4 0 0度底片拍摄星野银河星云星系或彗星可选用高速4 0 0度至超高速3 2 0 0度底片。