名词
中文翻译：头约束
同义词：
['headgear', 'headgear restraint']
例句：
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1.The driver was wearing a head restraint to protect his head from the impact of the collision.
驾驶员戴着头盔以保护头部免受碰撞的影响。
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2.The child was strapped in with a seat belt and a head restraint.
孩子被安全带和头约束器固定在座位上。
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3. The pilot wore a full-face helmet and a head restraint during the flight.
飞行员在飞行过程中佩戴了全脸盔和头约束器。