gain medium的用法和樣例：
例句
- Temperature profile in the gain medium is obtained.An interferogram of the gain medium is described.
結果表明片狀固體增益介質熱容方式工作對振蕩光束波前畸變影響很小。 - The hybrid gain medium can also increase the lasing bandwidth compared with a pure EDF laser, and improve the power conversion efficiency compared with a pure fiber Raman laser.
與純摻鉺光纖激光器相比，該混合增益介質同樣能夠增加激光帶寬，而與純光纖拉曼激光器相比，該混合增益介質也能夠改善激光器的功率轉化效率。
