Hypoxic seizures were witnessed in 55% of videos, but occurred in 88% of videos that employed the "sleeper hold" technique.
低氧痉挛在55%的视频中见到，但是在使用了“窒息固定”技术的88%的视频中出现。
People can lay their heads on the cushion on the upper part of the sleeper, while the other cushion can hold their bodies in a comfortable position.
头放在上面的垫子上，下面的垫子则可以让身体保持舒适的姿势休息。
During rail laying, the loop part of the U-shaped bent loop is knocked bent to hold down the foot of the rail and in this way, the sleeper and the rail are connected together.
铺轨时，“U”形弯环的环部被砸弯，压住钢轨的底脚，即可将轨枕与钢轨联结在一起。
During rail laying, the loop part of the U-shaped bent loop is knocked bent to hold down the foot of the rail and in this way, the sleeper and the rail are connected together.
铺轨时，“U”形弯环的环部被砸弯，压住钢轨的底脚，即可将轨枕与钢轨联结在一起。
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