frequency mixing的用法和樣例：
例句
- Their music personifies a varied approach to song writing, mixing dark, harsh and aggresive club anthems.
他們的音樂使用了各種方式進行歌曲寫作，黑暗混頻，製作粗礪和富有侵略性的夜總會聖歌，使其帶有人性色彩。 - A low power mixer and a basedband variable gain amplifier are designed for frequency downconversion and gain-adjustment, respectively.
最後實現了一個低功率的混頻器及基頻可變增益放大器，且此放大器可線性調整增益。
