The CAD technique of highway route is importance part of highway measure of modern, so that highway route is the main key in CAD technical development.
在公路路线设计中，往往存在多个可行方案，如何从众多可行路线方案中选取最优方案，是设计的关键。
The CAD technique of highway route is importance part of highway measure of modern, so that highway route is the main key in CAD technical development.
在公路路线设计中，往往存在多个可行方案，如何从众多可行路线方案中选取最优方案，是设计的关键。
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