基本解释[交通运输工程]膜片阀弹簧座英汉例句双语例句Mainly by the pilot valve seat, valve, diaphragm, spring, adjusting springs and other parts.导阀主要由阀座、阀瓣、膜片、弹簧、调节弹簧等零件组成。diaphragm valve spring seat更多例句专业释义交通运输工程膜片阀弹簧座