英语语法分析

Conclusion: Conventional ultrasound plays an important role in checking fetal dysostosis and is the first method in diagnosing the fetal dysostosis before birth.

结论常规超声检查对胎儿成骨发育不全的筛检有着重要意义，为产前诊断胎儿骨骼发育异常的首选方法。