封面设计要体现书的内容、性质、色彩要考虑读书对象、文化层次，装帧设计给人以美的感觉。

The cover's quality, color as well as layout express the importance of the design of the binding.

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其中初步设计要完成设计说明书一份、污水处理厂总平面布置图一张、高程图一张，流程图一张，主要设备图一张。

And the preliminary design must complete design instruction booklet one, Sewage treatment plant total floor-plan, elevation chart, flow chart, main equipment drawing.

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其中初步设计要完成设计说明书一份、污水处理厂总平面布置图一张、高程图一张，流程图一张，主要设备图一张。

And the preliminary design must complete design instruction booklet one, Sewage treatment plant total floor-plan, elevation chart, flow chart, main equipment drawing.

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