用“planetary nebulae”造句大全，planetary nebulae造句
Capturedincolorfultelescopicportraits,twocosmicowlsglarebacktowardplanetEarthinthisintriguingcomparisonofplanetarynebulae.Glowinginvibrantcolors,planetarynebulae,suchasthisone,representthedeathrattles...
用“nebulae”造句大全，nebulae造句
Planetarynebulaeareatypeofisolatedgaseousnebulaepossessingafairdegreeofbilateralsymmetry.Aroundtheclusterisahugevaguediffusenebulae.Youcanseenebulaeintheclearsummersky.TheGalacticDustinCoronaAustralis...