technical report
document that describes the process, progress, or results of technical or scientific research or the state of a technical or scientific research problem
en-US/ˈtɛknɪkəl ɹɪˈpɔɹt/
en-GB/ˈtɛknɪkəl ɹɪˈpɔːt/
document that describes the process, progress, or results of technical or scientific research or the state of a technical or scientific research problem