Hong Ngan N, Chi Nghia N. STUDIES OF THE OPTIMIZED WORKING-PARAMETERS OF A LIGHT IMPACT-VIBRATION HAMMER MODEL. Science and Technology Development Journal [Internet]. 31Aug.2002 [cited 22Jul.2024];5(7&8):20-7. Available from: https://stdj.scienceandtechnology.com.vn/index.php/stdj/article/view/3424