常见例句雙語例句For the limitations of the bandwidth and precision of manufacture, rat-race upper-sideband balanced mixer is utilized in order to realize up conversion.出於工作帶寬和加工精度等方麪的因素的考慮，設計採用的是環形電橋單邊帶平衡混頻器來實現上變頻。 返回 rat-race mixer