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On concrete tie track, because concrete tie's elasticity is bad, buckles also to provide the enough elasticity.
在混凝土轨枕的轨道上,由于混凝土轨枕的弹性较差,扣件还需提供足够的弹性。
youdao
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On concrete tie track, because concrete tie's elasticity is bad, buckles also to provide the enough elasticity.
在混凝土轨枕的轨道上,由于混凝土轨枕的弹性较差,扣件还需提供足够的弹性。
youdao