rigid helmet造句
造句與例句
手機版
- Summary the orthodontic headgear of this type comprises a substantially rigid helmet adapted to fit on a patient's head.
- 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.
- 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.
- 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.
- It's difficult to see rigid helmet in a sentence. 用rigid helmet造句挺難的
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