该文分别以理想矩形和高斯钟形脉冲作为雷达回波信号模型，通过仿真研究，详细讨论了NMTI方法在宽带雷达中的应用。

In this paper, ideal rectangle and Gaussian shape pulse act as radar echo signal model. Through simulation research, application of NMTI method in wideband radar systems is discussed in detail.

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在钟形双脉冲激励下，观察了DH激光器的电荷存储效应。

The charge storage in DH laser driven by pairs of bell-shape pulse current has been investigated.

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常用的疏水阀有浮桶式、热动力式、自由浮球式、双金属片式、脉冲式、钟形浮子式等。

The trap is commonly used for floats, thermal-power, free-float, double-metal-style, pulse, and so on-bell-shaped float.

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