But there are still some points to watch . and these are more important with static type belts . the lap belt must restrain your hip bones by lying across the top of your thighs not stomach 大多数新式的安全带都是自动式，但仍须注意以下数点尤其是手调式安全带：安全带的横带应横过你的上大腿，而非腹部，用以固定你的臀部
3.
Lap belts , as well as the lap portion of a lap - shoulder belt combination should be placed low , across the hips , under the bump and over the upper thighs . they must lie snugly over the pelvis , one of the stronger bones of the body 环腰式安全带或安全带的横带一段部分应调低至两臀骨位置，即腹之下及大腿骨之上，将带紧贴盘骨人体最坚固的骨骼之一。
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