direct digital control

基本解释

This paper discusses the direct digital control (DDC) in the air-handing unit of air-conditioning system.
本文将讨论空调系统中空气处理机组的直接数字控制（DDC）设计。
This paper is mainly about the application of DDC(Direct Digital Control)process control in polymerizer forced condensation and the results.
本文主要论述了聚合釜冷凝强制投用的DDC过程控制应用。
This paper describes a multi-loop, multi-object Direct Digital Control(DDC)system which allows computerized automatic control and management system to be used for large scale water supply facilities.
作者和同事们共同研制了大工厂供水设备的自动控制与管理系统，并已在实际中得到运用。