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Basic science refers to the science that takes natural phenomena and material movement forms as the research object and explores the law of natural development. It is the theoretical basis of the whole science and technology, and plays a guiding role in technical science and production technology. This album includes 13 disciplines, including mathematics, mechanics, chemistry, physics, astronomy, geography, biology, meteorology, geology, oceanography, geophysics, resource science, physical geography and surveying and mapping. It contains more than 4 million documents and the resources are updated daily.

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Social science refers to the science that takes social phenomena as the research object. The main task is to study and expound the social phenomenon and the law of development. This album focuses on political, military and legal disciplines. It includes 17 disciplines, including Marxism, the Communist Party of China, political science, political parties and mass organizations, military affairs, public security, legal history, constitution, administrative law and local legal system, civil and commercial law, criminal law, economic law, international law and so on. Nearly 8 million articles are collected and the resources are updated daily.

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Engineering technology refers to practical engineering technology, which is usually the comprehensive application of many disciplines. This album is mainly a collection of literature on machinery, architecture, transportation and related disciplines. It includes 15 disciplines, such as machinery industry, railway transportation, new energy, building science and engineering, electric power industry, etc. more than 9 million articles are included, and the resources are updated daily.

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Social science refers to the science that takes social phenomena as the research object. The main task is to study and elaborate various social phenomena and development laws. This album focuses on social, demographic and educational research. It includes 13 disciplines such as sociology and statistics, preschool education, vocational education, etc., with more than 9 million articles included, and the resources are updated daily.

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Agricultural science and technology refers to the science and technology used in agricultural production and agricultural products processing technology specially for rural life. This album includes 10 disciplines, including agricultural basic science, agricultural engineering, agronomy, plant protection, crops, horticulture, forestry, animal husbandry and animal medicine, silkworm bee and wildlife protection, aquatic products and fisheries. It contains more than 4 million literatures and is updated daily.

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Economics is a general term for the study of human economic activities and economic relations; Management science is a science which studies the basic laws and general methods of management activities, and is a comprehensive interdisciplinary subject. This album includes 24 disciplines, such as finance, securities, insurance, management, etc., with more than 18 million literatures collected, and the resources are updated daily.

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Medical and health science and technology is related to the treatment and prevention of physiological diseases and the improvement of human health. This album includes 28 disciplines including traditional Chinese medicine, Chinese medicine, integration of Chinese and Western medicine, basic medicine, clinical medicine, oncology, Stomatology, biomedical engineering, etc. it contains nearly 9 million literatures, and the resources are updated daily.

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