近年来“云烟”走俏各地,“广(东)货”覆盖全国,究其原因,无非是他们在技术改造、技术进步上舍得花本钱,产品升级换代快,赢 In recent years, “clouds of smoke” have spread all over the country. “Guang (East) goods” have covered the whole country. The reason is that they are willing to spend money on technology improvement and technological advancement. Products are upgraded and replaced quickly.