The principle and the design of quadrature-beamformer are discussed and the effect of the frequency shift on the beam axis is theoretically analyzed.是什么意思_The principle and the design of quadrature-beamformer are discussed and the effect of the frequency shift on the beam axis is theoretically analyzed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句