This paper addresses a modeling approach to analyzing an integrated system that includes freeway mainlines, ramp metering, and an upstream signalized diamond interchange.
研究了如何使用模型来分析建立包含高速公路干线、匝道控制和上游信号控制的菱形立交的一个综合控制系统。
The traditional approach is for a retailer to buy a diamond which then sits in its inventory awaiting a buyer, often for months or even years.
传统的做法是零售商买进钻石，然后加入商品目录，等待买家。经常需要数月甚至好几年才能售出。
The traditional approach is for a retailer to buy a diamond which then sits in its inventory awaiting a buyer, often for months or even years.
传统的做法是零售商买进钻石，然后加入商品目录，等待买家。经常需要数月甚至好几年才能售出。
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