The whole city drainage system program is as follows: rain water wells road, clay and drain well across the street and drainage inspection wells and underground drainage main lines.

市政整体排水系统程序如下：路面雨水→雨水井→沉泥井→过街排水管→排水检查井→地下排水主干线。

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Nowadays, one of the main reasons for college teachers working without all their energies, even one cause of the brain drain in colleges, is there is un-rational incentive system.

目前，激励机制扭曲是造成我国高校教师积极性不高，甚至发生人才流失的主要原因之一。

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