计算表明，利用动态规划理论合理安排每型部附件的备用部附件数量，既可以有效提高装备可靠性，又能将加改装费用降低到最小。
Calculation shows that reasonable arrangements for the number of spare parts by dynamic programming improve equipment reliability effectively, and the modification cost is reduced to the minimum.
答：具体规划路网应以附件7为准，附件9仅为示意图。
Answer 10: Specific planned road network should refer to the appendix 7, appendix 9 just being a demonstration.
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