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lap belt (汽車座位上系在腰部的)安全帶。

lap board

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 環腰式安全帶或安全帶的橫帶一段部分應調低至兩臀骨位置,即腹之下及大腿骨之上,將帶緊貼盤骨人體最堅固的骨骼之一。

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 大多數新式的安全帶都是自動式,但仍須注意以下數點尤其是手調式安全帶:安全帶的橫帶應橫過你的上大腿,而非腹部,用以固定你的臀部

Import young lap belts for cars 進口少兒汽車安全帶。