The construction and principle of system, and design of major software are described in detail.
对系统的结构和工作原理，以及主要软件模块的设计进行了较详细的叙述。
The principle, the hardware construction and software design are discussed in detail.
介绍了系统的工作原理、硬件结构和软件设计。
Design in Detail: Landscape Construction.
细节设计：景观结构121。
Design in Detail: Landscape Construction.
细节设计：景观结构121。
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