The range through these states is mediated by the arousal system, a network of tracts converging from sensory systems to integrating centers in the brain stem.

这些状态的变化是以激发系统作为媒介完成的，而所谓激发系统，是指从各个感觉系统汇聚到位于脑干中整合中心的一个网络。

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These physicians are assigned through the "PROFIS" system.

这些医生是通过“普罗菲斯”系统分配的。

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However, many companies are seeking to solve these problems through the implementation of intelligent transportation system (ITS).

目前，许多公司正在寻求通过智能交通系统(its)的实施解决这些问题。

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By collecting these payments through the tax system, and channelling them to private funds chosen by employees, the state will cut the cost of saving and increase its value.

ECONOMIST: Pensions

Coming after decades of steady growth, these figures sent shock waves through the academic system.

ECONOMIST: Wandering scholars

These Living Machines recycle wastewater by filtering it through a system of bacteria and plants.

FORBES: Magazine Article