主要由带螺纹的动力连接杆、不带螺纹的滑动连接杆、4～6个滑动体和耳状体组成。

The double-track type external fixed bracket mainly comprises a power connecting rod with threads, a sliding connecting rod without threads, 4-6 sliding bodies and an ear-shaped body.

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所查杯状耳均无耳聋病史及其它部位畸形。结论：杯状耳的形成是由父母双方中一方杯状耳基因决定的，家系分析显示为常染色体显性遗传。

Conclusion:The family investigation suggested that the formation of cup ear was determined by the cup ear gene of an affected parent and it was an autosomal dominant inheritance.

youdao

所查杯状耳均无耳聋病史及其它部位畸形。结论：杯状耳的形成是由父母双方中一方杯状耳基因决定的，家系分析显示为常染色体显性遗传。

Conclusion:The family investigation suggested that the formation of cup ear was determined by the cup ear gene of an affected parent and it was an autosomal dominant inheritance.

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