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Turnouts shall be treated in the same manner as the track by an appropriate lining levelling and tamping machine.
道岔应采用与轨道相同的方法,由合适的衬砌、平整和打夯机来处理。
youdao
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Turnouts shall be treated in the same manner as the track by an appropriate lining levelling and tamping machine.
道岔应采用与轨道相同的方法,由合适的衬砌、平整和打夯机来处理。
youdao