Intersection design is an important part of city road design.

摘要交叉口设计是城市道路设计的重要组成部分.

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The special oil road design, model the efficiency to raise 30 % above.

独特油路设计, 成型效率提高30%以上.

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Numerous publications have been prepared on the subject about road design and control for highway safety.

有关道路设计及其安全控制问题,已出版了众多著作.

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