7月29日，来自全国各地的劳动模范在颐和园昆明湖畔听导游介绍颐和园环境保护及历史情况。当日，中华全国总工会组织300多名全国劳动模范参观北京颐和园。新华社记者 何俊昌 摄     July 29,，From all over the country in the Summer Palace labor model of kunming lake listen to guide introduces the Summer Palace environment protection and history。On that day，The all-china federation of trade unions organized more than 300 national model worker visit the Summer Palace。The xinhua news agency HeJunChang perturbation