The kinds of diseases of the turnout zone are multifarious.
道岔区内病害形式多种多样。
The guard rail plays an im po rtant role of ensuring the vehicle passing through the turnout zone successfully .
护轨对确保车辆顺利通过道岔起着重要的作用。
The guard rail plays an im po rtant role of ensuring the vehicle passing through the turnout zone successfully .
护轨对确保车辆顺利通过道岔起着重要的作用。
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