For Internal Use only:1. Lu Wang  Lu Wang is the lecture of China University of Geoscience (Beijing), the Deputy Secretary General of China Society for Trenchless Technology. She got her PHD degree from Beijing University of Aeronautics and Astronautics in 2018. Her research interests are measurement while drilling technology, Well trajectory inertial measurement technology and pipeline 3D trajectory measurement technology. Publications of the last five years(1) Wang Lu*; Zhang Chunxi; Lin Tie; Li Xianmu; Wang Tao. Characterization on of a fiber optic gyroscope in a measurement while drilling system with the dynamic Allan variance , Measurement, 2015.11, 75: 263~272. (2) Wang Lu*; Noureldin Aboelmagd; Iqbal Umar; Osman Abdalla M.,A.. Reduced Inertial Sensor System Based on MEMS for Wellbore Continuous Surveying While Horizontal Drilling, IEEE Sensors Journal, 2018.07.15, 18(14): 5662~5673. (3) Wang Lu*; Zhang Chunxi; Gao Shuang; Wang Tao; Lin Tie; Li Xianmu. Application of Fast Dynamic Allan Variance for the Characterization of FOGs-Based Measurement While Drilling , Sensors, 2016.12, 16(12): 1-17. (4) Wang Lu* Zhang Chunxi; Gao Shuang; Lin Tie; Li Xianmu, Influence of linear vibration on the errors of three-axis FOGs in the measurement while drilling systems , Optik, 2018, 156: 204~223. (5) Wang Lu*，Yu Wang，Yaqi Deng; Drilling Trajectory Survey Technology Based on 3D RISS with a Single Fiber Optic Gyroscope, Optics， 203，2020， 163971 2. Chunwen Yan Chunwen Yan is the professor of China Geological Equipment Group Co,,Ltd. Vice Chairman of China Society for Trenchless Technology. Director of International Society for Trenchless Technology. Member of World Mining-Tech Society (Sweden). Member of China Geological Association – Exploration Committee. He got his master degree from China University of Geosciences (Beijing) in 1988. His research interests is Underground Engineering: Exploration, Mining and Tunneling, Geotechnical Engineering for Deep Foundation, Trenchless Technology within Microtunneling, Directional Drilling, Impact Moling, Pipe ramming, Online Replacement and In-situ Renovation. 3. Junyu Xu Junyu Xu is the secretary of Department of international cooperation in China Society for Trenchless Technology. He got his bachelor's degree from Shanghai University of International Business and Economics in 2007. His majored in Business English and got Tem-8 certificate.