doorplate的意思？

doorplate的音标：doorplate的英式发音音标为：['dɔ:pleɪt]doorplate的美式发音音标为：['doʊrˌpleɪt]...

Can you tell me if the doorplate the new one or the old one?救护车已经在路上了,请问你住的9栋是新门牌号还是旧门牌号?I'd like a picture from which I could see both the window and the doorplate number.我想要一张既可以看到这窗户又可以看到门牌号码的图片....