The papers in the first region are published in the journal An 1, and the percentage of papers in the first region is the least, with the largest impact factor. Papers in the first field of sci are difficult to publish. 54438+0 pays special attention to the topics and excerpts of the paper.

Engineering refers to the research and application of materials science, computer, information, electronics, machinery, electricity, architecture, water conservancy, automobiles, instruments and other technologies and processes. Engineering or engineering is "applying the principles of science and technology to solve problems".