求翻译：平交道口的布置图见A1058U2-5,6,7。道口处铺面板的板面标高，在钢轨中间处与轨面同高，在钢轨外侧50mm范围内，为防止车轮踏面接触路面，铺面板应低于轨面5mm。是什么意思？

The layout of the level crossing, see a1058u2-5, 6,7. Crossing panel of the board surface elevation at the shop in the rail the middle of the track surface with high rail lateral 50mm range, in order to prevent the wheel tread contact with the road, paved the panel should be below top of rail 5mm.

The location of plans see A U 1058 2-5, 6, 7. The Board of the paved road surface elevation, friezes in the middle and rail-with-in 50mm steel rail on the outside, to prevent wheel tread surface plate should be paved road, less than 5mm rail-side.

The equal footing relations road junction general arrangement sees A1058U2-5,6,7.Road junction flooring board pan elevation, in rail middle place and top of rail with high, in the rail flank 50mm scope, for prevented the wheel roller face contact road surface, the flooring board should be lower than

Layout of level crossing, see A1058U2-5,6,7. Crossing surface elevation of paving slabs, in the Middle rail and rail with high, outside of the Rails 50mm range, in order to prevent wheel tread contact with the road surface, Panel laying should be lower than the 5mm rail.

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