外支架 meaning in English

external spider
outer support
outer tube

External limb prostheses and external orthoses . requirements and test methods
外肢假体和矫形外支架.要求和试验方法
Prosthetics and orthotics . vocabulary . part 3 : terms relating to external orthoses
矫形和假肢组件.词汇.第3部分:矫形外支架的相关术语
Analysis of the effect on severe open tibial fracture treated with locked intramedullary nailing and external fixation
交锁髓内钉与外支架治疗严重胫骨开放性骨折的疗效分析
The support in the tower ， although pickled and galvanized ， plastic injected ， the water quality still needs protecting by painting antirust additive or antirust varnish according to the corrosion condition
塔体内外支架，虽经酸洗热镀锌喷塑，但因运输安装中损伤，水质问题等视其腐蚀程度，涂防锈剂或防锈漆进行保养。