wedged rail anchor
... 防爬器anti-creeper;rail anchor 穿销防爬器wedged rail anchor 弹簧防爬器spring rail anchor ...
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提出了一种新型的螺栓式钢轨防爬器，改变了穿销式防爬器的紧固方式。
This paper puts forward a new type of bolted anti-creepers, which changes the fixture mode of the dowelled anti-creeper.
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