系统采用数控衰减、高线性度中放和I、Q正交双通道，具有较高的采样率和较宽的测量波门。
The system has digital control attenuator, high linear IF magnifier, I/Q channels, high speed A/D converters and wide measurement gate.
本文主要研究高维空间中带有退化粘性的标量守恒律方程的光滑解的整体存在性，以及该解逼近强平面稀疏波的衰减率。
This paper is concerned with the decay rates of the solution to the strong planar rarefaction waves for scalar conservation laws with degenerate viscosity in several space dimensions.
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