例句與造句

1. Summary the orthodontic headgear of this type comprises a substantially rigid helmet adapted to fit on a patient's head.
2. A 1988 report in the New England Journal of Medicine estimated that rigid helmets would reduce head injuries for cyclists by 85 percent and brain injuries by 88 percent.
3. Copper helmet windows had been of glass for a long time, but a rigid helmet supported by the corselet can carry glass much thicker and stronger than a mask strapped over the face.
4. Other appliances and devices, such as a full rigid helmet headgear, have been designed and patented to fit onto the patient's head and provide a stable platform from which the orthodontist can attach various elastic bands, springs, metal facebows directly into the patient's mouth.
5. It's difficult to find rigid helmet in a sentence. 用rigid helmet造句挺難的