double-acting engine

机械英汉词典-机械资讯... ... double-acting ||双动式 double-acting engine ||双动发动机 double-acting hammer ||复动式锻锤 ...

进出口行业词汇英语翻译(D) ... double-acting engine 双作用式发动机 double-acting hand force pump 双作用手摇泵 ...

政府部门常用英汉辞汇：水务_翻译家... ... double-acting engine 双动引擎 double-sealed cover 复式封盖 ...