例句與造句

1. Most known extragalactic masers are megamasers, and the majority of megamasers are hydroxyl ( OH ) megamasers, meaning the spectral line being amplified is one due to a transition in the hydroxyl molecule.
2. Likewise, the term "'kilomaser "'is used to describe masers outside the Milky Way that have luminosities of order, or thousands of times stronger than the average maser in the Milky Way, "'gigamaser "'is used to describe masers billions of times stronger than the average maser in the Milky Way, and "'extragalactic maser "'encompasses all masers found outside the Milky Way.
3. It's difficult to find extragalactic maser in a sentence. 用extragalactic maser造句挺難的