air operated reversing valveair-operated valvepneumatic reversing valve气动: pneumatic换向: changing-over; change; jibe; ...阀: established house or power g ...手动换向阀: hand change over valve; hand-control directional valve; hand-directional valve; hand-operated direction valve液动换向阀: hydraulicchange-over valve下载手机词典可随时随地查词查翻译
