dual band的用法和樣例：
例句
用作名詞 (n.)
- In order to study the optical feedback characteristics at the dual frequency laser, a birefringent external cavity was studied throughboth theoretical analysis and experiments.
摘要為了研究雙頻激光器的光回饋特性，采用雙折射外腔光回饋的方法，進(jìn)行了理論分析和實(shí)驗驗證，取得了雙頻激光器中條紋倍頻現象的數據。
