Three transportation systems of filling slurry in deep mining are studied, namely liberty whereabouts feeding system, full pipe flow feeding system, decompressed feeding system.

研究了深井充填料浆的三个输送系统，即自由下落输送系统、满管流输送系统、减压输送系统的关键技术。

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Through numerical simulation, the characteristics of goaf flow field and gas transportation under J-shape and U-shape ventilation systems were analyzed.

通过数值模拟，对比分析了J型通风和u型通风条件下的采空区流场及瓦斯运移特征。

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Traffic monitoring plays an important role in intelligent transportation systems. It can be used to collect real time traffic data concerning traffic flow.

交通监视系统通过采集实时交通流量数据，为智能化交通运输服务和控制管理提供依据，在智能交通系统中有着极其重要的作用。

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