For their estimation a process scheme sorting layer tree is set up. The fuzzy synthetic estimation module is founded based on the product quality, manufacturing cost and production cycle.

以产品质量、生产成本和生产周期为基础，构造了工艺方案评价分层指标树，建立了工艺设计方案的模糊综合评价模型。

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Toll collection system has 3-layer tree structure:Toll collection center, Toll collection station and driveway toll.

收费系统分为收费中心、收费站和收费车道三层树状结构的收费系统模式。

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Toll collection system has 3-layer tree structure:Toll collection center, Toll collection station and driveway toll.

收费系统分为收费中心、收费站和收费车道三层树状结构的收费系统模式。

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