two-frequency的用法和樣例：
例句
用作名詞 (n.)
- Dual-band balun has the advantages of high input impedances at two separate bands.
因為雙頻巴倫具有高輸入阻抗的特性于某兩個頻帶上。 - 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，進行了理論分析和實驗驗證，取得了雙頻激光器中條紋倍頻現象的數據。
