For a long time, people did not understand the cultural connotation of industry, and the concept of cultural relics protection was relatively backward. In fact, each industrial heritage represented the highest level of social productivity at that time and promoted the development of society. Heritage is like a cultural carrier that transcends the times and a container of modern design, condensing historical information in socio-economic, industrial and engineering technologies. Some industrial heritages even represent the most basic things of a city, witnessing History of urban development. The most accurate summary of this text is:. ['The concept of cultural relic protection should adapt to the development of productivity.', 'Cultural research should take industrial heritage as a breakthrough.', 'Industrial heritage records the history of urban development.', 'Industrial heritage is a cultural relic.']