Information about Lü Hong available to the public is limited; he is currently known only for two works, Mechanical Design (2nd Edition) and Course Design in Mechanical Design (2nd Edition). Judging from their titles and contents, his writing centers on the field of mechanical design, combining theoretical instruction with practical course design, which is typical of engineering textbook authorship. Such textbooks generally serve classroom teaching and course design in mechanical engineering programs at higher education institutions, emphasizing the integration of fundamental theory, design methods, and engineering standards, and helping to develop students' design skills and engineering awareness. Because no reliable records of the author's biography, education, or positions have been found, this introduction makes no speculation and describes his work only in terms of its subject matter: teaching-oriented, practice-focused, and systematically organized, suitable for classroom use and as a reference for course design.
