同时还介绍了一单通道主飞控系统的地面演示和一副翼配平控制系统的飞行演示。
The paper also describes a ground demonstration of a one channel primary flight control system and a flight demonstration of an aileron trim control system.
植物神经系统分为交感神经和副交感神经，它可以支配平滑肌和身体中的各类腺体。
The autonomic nervous system innervates smooth muscles and glands, and is divided into the sympathetic and parasympathetic branches.
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