通过对水利损失的计算，确定了各构筑物的高程，为绘制高程布置图和平面布置图提供了依据。

The loss of water through the calculation to determine the elevation of the structures for mapping elevation layout maps and graphic layout plan provided basis.

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双导堤平面布置不宜呈突然扩大或收缩状，堤顶高程宜与中潮位一致。

In the plane layout of double dikes, the sudden expansion or contraction should be avoided. The elevation of the top of the dike should be identical with middle tide level.

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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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