本文对北京牌8306型彩色电视机的开关电源进行了详细分析,并给出了电路设计方法。
The switched power supply circuit in color TV set, Beijing brand model 8306, are analysed in detail, and a design method of the circuit are given in this paper.
我要乘坐去北京的514号航班。信息牌显示航班延误。
I'm here for flight 514 returning to Beijing but the board shows there is a delay.
北京南站主管站长许盛刚说:“从五月中旬开始,我们开始通过广告牌,广播和液晶屏幕发布这项政策。
Xu Shenggang, Chief of Beijing South Railway Station said "Starting from mid May, we began to announce the policy through billboards, broadcasts, and LCD screens.
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