The intensity of concrete, progress of construction and free traffic are three main problems for board updating construction, especially in highway with large traffic volume.
混凝土强度、施工进度、车辆畅通是换板施工的三个主要问题，在交通量大的公路上更是如此。
The intensity of concrete, progress of construction and free traffic are three main problems for board updating construction, especially in highway with large traffic volume.
混凝土强度、施工进度、车辆畅通是换板施工的三个主要问题，在交通量大的公路上更是如此。
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