Next, based on PID control's structure, the need of practical control engineering and the realizable conditions, it is analyzed that PID control's special advantages and the theoretical argument.
接下来，从PID控制的结构形式、实际控制工程需求和实现条件分析了PID控制的独特优点和理论依据。
2
Design calculation has been made for this kind of specialstructure vessel with engineering design calculation method.
文中运用工程设计计算法，针对该特殊结构的容器进行了设计计算。
3
For product adopting field foaming pumping pouring shape, also can factories, Prefabricated forming, used for specialstructure roofing engineering construction, quick and convenient.