Previous guided test flights have succeeded in direct hits against stationary targets.
之前制导测试飞行已经成功地直接命中固定目标。
In a lot of antijamming techniques for direct spread spectrum system (DSSS), the DSSS signal is approximately considered as a stationary process.
众多的扩频通信抗干扰技术往往把有用扩频信号近似看作平稳随机过程。
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