分流凸片管热交换器 finned tube heat exchanger: 翅片管换热器finned-tube heat exchanger: 翅管换热器finned annulus heat exchanger: 环形翅片管热交换器finned heat exchanger: 翅片管换热器; 翅片换热器; 翅片式换热器finned surface heat exchanger: 翅面换热器下载手机词典可随时随地查词查翻译