s normae造句
造句与例句手机版
- S Normae is a Classical Cepheid variable with a visual magnitude range of 6.12 to 6.77 and a period of 9.75411 days . The spectral type varies during the pulsation cycle from F8 to G0.
- It's difficult to see s normae in a sentence. 用s normae造句挺难的