demand control meaning in English

要求控制

With the assistance of the emsd , the gfs has installed a co - based demand controlled ventilation ( dcv ) system at their headquarters
在机电工程署协助下，飞行服务队在总部装设了一个二氧化碳监测的节能通风系统。
The purpose of load demand controls is to reduce fuel consumption and limit problems caused by light load operation of reciprocating diesel generator sets
负载需求控制的目的是降低燃料的消耗量，减少往复式柴油发电机组因低负荷造成的故障。
Through the use of water - cooled air - conditioning systems , high efficiency chillers , heat pumps , thermal wheels , high performance lighting systems and demand control systems etc . , we achieved an estimated annual saving of 108 , 000 mwh of energy in 2003
透过使用水冷式空调系统、高效能冷冻机，热泵、热轮、高效照明系统及自动控制系统等，我们在2003年共节省了108 , 000兆瓦时的能源。
Networks continue to lose audience share , and viewers ? especially many of the highly prized viewers under 30 years old ? are increasingly demanding control of their program choices , insisting on being able to watch shows when , where and how they want
电视网的听众和观众的份额一直在下降，尤其是极被看重的30岁以下的观众，他们对于节目选择的控制权要求越来越高，坚持能够在他们希望的时间，地点，以他们希望的方式观赏节目。