Normally Open pilot assisted valves operate on a similar principle but with opposite effects from the pressure variations.

常开阀运行试验的协助一项类似的原则，但与来自压力变化相反的效果。

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This thesis mainly focuses on the algorithms for channel estimation in the wireless OFDM systems including pilot assisted channel estimation and channel blind estimation.

本文主要研究无线OFDM系统中的信道估计算法，包括基于导频辅助信道估计算法和信道盲估计算法。

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But the optimizing design about basic parameters still has not been seen as yet, the disquisition pilot study on the computer assisted optimization design of Oscillatory Roller Transmission.

但对于基本参数的优化设计至今尚未见报导，本文对全滚动活齿传动的计算机辅助优化设计作了初步探讨。

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It wasn't immediately clear Friday whether the pilot was the same one that Kavanaugh assisted.

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