According to the concrete situation of present multimedia classroom, this paper designs a set of multimedia centralized controlling system.
根据当前多媒体教室的具体情况，设计了一套多媒体集中控制系统。
The construction and administration of the round-the-city greenbelt shall follow the principle of unified planning, unified plan, centralized controlling and graded administration.
环城绿带的建设和管理，实行统一规划、统一计划、集中控制和分级管理的原则。
Though the automatization level of the pumping stations built in eighties of 20 century has made some progress, the controlling way is adopted the weak electricity centralized form only.
20世纪八十年代所建泵站，在自动化方面虽有所进步，但主要还是采用弱电集中控制方式。
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