periodical comets
(set theory) A mathematical notation for describing a set by specifying the properties that its members must satisfy.
plural of bibliolater
plural of periodical comet
Happening or produced prior to secretion
天文学者は周期彗星を追跡して、それらがいつ内側の太陽系に戻ってくるかを予測する。
Don't have an account? Sign up
Do you have an account? Login
DiQt
Free
★★★★★★★★★★
