Simple feeble detonation assumption was adopted in dealing with the sound velocity surface.

在对声速面进行处理时采用简单弱爆轰假设。

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It generates small particles with random size and velocity and lets them fall onto the surface where they settle, increasing surface height in the place a bit.

它产生随机大小和速度的小粒子，让它们落到图像表面上，使图像产生表面高度小小渐增的效果。

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TCN manages air, land, space and surface mission domains and can track both low - and high-velocity targets.

TCN管理空中、地面、空间和水面等领域的任务，并可以对低速和高速的目标进行跟踪。

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