v.(飞机等)式样翻新;改进
n.翻新;改进
Engineered with a modular approach, NIBCO's electric and pneumatic actuation systems give you flexibility to actuate new valves or retrofit existing valves. 由于采用模块式结构,美国尼伯科电动和气动执行机构系统可以灵活应用在新阀门或改进阀门上。
v.作翻新改进(动词retrofit的过去式和过去分词)