复合三次差拍 CTB ; composite triple beat
合三次差拍 CTB
载波复合三次差拍比 dB ; C/CTB
组合三次差拍 CTB
三次变频超外差接收机 triple superheterodyne
三次样条差分方法 Cubic spline finite difference method
三次差
Three times the difference
以上为机器翻译结果，长、整句建议使用 人工翻译 。
为了提高收视质量，对系统设计中的载噪比和复合三次差拍（CTB）指标必然提出更高的要求。
As a result, it would carse more serious noiSe and distortion, In order to improve the reception quality, we are asked to make better design of a carrier for its noise ratio and CTB target.
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