词汇	unquestionable true
释义	unquestionable true 千真万确
随便看	reversing gas valve reversing gas valve internal-combustion engine reversing gas valve, lift valve reversinggear reversing gear reversing gearbox reversing gear box reversing gear catch reversing gear control bracket reversing gear, electric reversing gear, electric model railway REVERSING-gear for steam and similar engines reversing gearing reversing gear mechanism reversing gear selector mechanism reversing gravity die reversing handle reversing-handle reversing handwheel reversing hand wheel Reversing heat exchanger reversing hooker reversing hot strip mill reversing index reversing indicator