增益降低 meaning in English

gain turn-down

Generally speaking , the increase of the slot length and width can make the resonance frequency low , which is not the longer the better , however
一般来说,缝隙长、宽的增加可使谐振频率点降低,而较大的缝宽也降低了贴片的有效辐射面积,使增益降低,所以需要折衷协调。
Fifthly , a reasonable explanation to the phenomenon was given that the temporal behavior of twm will be different while the signal beam opening time delays a different time after pump beam opened
对实验观察到信号光打开时间延迟将导致两波耦合能量增益曲线峰值增益降低的现象，从光扇时间演化角度进行了合理的解释。
The nonlinear filtering for nbi estimate - subtract assumes that the prediction error is dominated by spread spectrum signal and the background noise power is far below spread spectrum chip power , this assumption promises the low error ratio of chip decision but may not be attainable to digitalized dsss receiver in military communication environment , and does not coincide with the principle of dsss communication that decreases bit error ratio ( ber ) depending on spread spectrum gain , not on chip power
在干扰估计抵消滤波中,以往的非线性滤波要求干扰抵消滤波后扩频信号功率远大于残余噪声功率,进而假设码片判决的误码片率基本为零,这一要求对军用扩频通信是不利的,而且也不符合扩频通信利用扩频增益降低误码率的原则。