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中波、短波广播发射机的研制工作,在接连不断提出来的要求的鼓励下,一直在深入地进行着。能源费用的不断上涨又给了它一种新的推动。几年以前,发射机工厂的主要努力方向是设计和制造出功率尽可能最大的发射机;现在不同,工厂的
The development of medium-wave and shortwave radio transmitters has been going on in depth with the encouragement of successive requests. The rising cost of energy has given it a new impetus. A few years ago, the main effort of the transmitter factory was to design and manufacture the transmitter with the largest possible power; now the factory