TY JOUR TI Design and evaluating efficiency of gas exhaust system silencer of outboard motor SEA PRO 2.5 KW small boat KW outboard motor KW gas exhaust system silencer KW efficiency KW sound level JO Vestnik of Astrakhan State Technical University. Series: Marine engineering and technologies AU Pokusaev, M.. AU Khmelnitsky, K.. AU Kadin, A.. AU Sergeev, A.. PY 2021 IS PB Astrakhan State Technical University