Until the middle of the 20th century, surgical treatment of pelvic and acetabular fractures was non-existent.

在20世纪中期以前，一直不存在骨盆和髋臼骨折的手术治疗。

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Until the middle of the 20th century, surgical treatment of pelvic and acetabular fractures was non-existent.

在20世纪中期以前，一直不存在骨盆和髋臼骨折的手术治疗。

youdao