基于社会资本理论的艾滋病患者社会支持系统构建 关键词：社会资本，社会支持，艾滋病，患者，防治 [gap=731]Key Words：social capital。social support。AIDS。patient，prevention and contro1
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contro1 system 控制系统
The nonlinear PID control is a simple and direct method for nonlinear contro1 problems.
非线性PID控制方法是一种处理非线性控制问题的简单直接的办法。
The Linear chain or triangles is a better formation of the plane contro1 of the triangulation.
线形锁是一种良好的平面控制测量加密网形式。
It is approved by practice that the control system has the advantage of widely suitability and high contro1 accuracy etc.
实践证明，该系统具有适用性广泛，操作方便，控制精度高等特点。
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