Their main features and principle of operation are described.
介绍它们的主要特征和操作原理。
The features, the system composition and operation principle of this system are described in detail.
文中详细叙述了这种系统的特点、组成和工作原理。
The features, the system composition and operation principle of this system are described in detail.
文中详细叙述了这种系统的特点、组成和工作原理。
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