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1·The power attenuation coefficient and the change of the coherence of the laser through the sediment-laden water are obtained in the experiment.

实验获得了激光穿过浑水的功率衰减系数和相干性变化。

2·To counter the characteristic of suppress jamming and center of mass jamming, this paper establishes the models of noise jamming, signal power attenuation and center of mass jamming.

针对压制干扰和质心干扰的特点，分别建立了噪声干扰模型、信号功率衰减模型和质心干扰模型。

3·One is attenuation control mode and the other is power control mode.

一种是衰减比例控制模式，另一种是功率控制模式。

4·Signal attenuation in the power line environment is often great, and unpredictable.

信号衰减在输电线环境经常是伟大和变化莫测的。

5·Attenuation Coefficient The rate at which average power decreases with distance.

衰减系数平均功率随距离的延长而降低的比率。

6·In a model with vertical incidence of plane electromagnetic wave into plasma slabs with metal underlay, the attenuation of electromagnetic wave and reflected power are deduced.

采用垂直入射具有金属衬底的均匀等离子体模型，对不同入射频率的电磁波的衰减以及总出入射功率比进行了数值模拟。

7·But, there exists serious noise and channel attenuation in power line and they affect the quality of communication seriously.

但由于电力线路存在着强噪音、信道衰减等原因，严重影响了通信质量。

8·Furthermore, the formulae of transmitted power, loss power, attenuation constant and equivalent impedance for TM and te modes are deduced.

此外，推导出波导tm、TE模的传输功率、损耗功率、衰减常数、等效阻抗等特征参数的边界元公式。

9·The light path in the conduction process loss, avoid the traditional cutting bed due to optical transmission problems caused by large attenuation of laser cutting power.

使光路在传导的过程 中损失最小，避免传统裁床由于光路传输问题而造成激光切割功率的大量衰减。

10·The influences of length, dispersion index and attenuation index of transmission fiber and incident optical power on ber (bit error rate) and Q value of the system is analyzed.

仿真研究了传输信道和光功率对光码分多址系统性能的影响，分析了传输距离、光纤色散系数、光纤衰减、入纤光功率等与误码率和Q值的关系。