interchangern.交换器interchangen.交换；立体交叉道v.交换interchange and coordination互换协调interchange education system立交桥式教育体系interchangeable cavity mould换模腔模具interchange labour and repose劳逸兼顾interchangeable manufacturing互换性制造interchangeable column system可互换的柱系统Interchange of transportation交通枢纽interchange labor with leisure劳逸结合interchange transmission group交换传输interchange-needling therapy缪刺法