册中的邮票部分，更是一大亮点，它收集了中国邮政至今为止发行的有关四川各世界遗产景区的全部邮票、小型张，收藏价值极高。
Volume of stamps part, is a highlight, it was collected by China post so far issued on sichuan each world heritage scenic spots all the stamps, sheet, a high value for collection.
并以四川省邮政公司11个地市邮政车辆运输费用结算为例，计算了各点实际的月度邮运成本费用，提出了邮政车辆运输问题的一般模型。
The monthly practical freight cost also has been calculated by taking Sichuan post in 11 cities as an example. The general model has also been put forward.
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