青云翻译

(4) Standard-span: beam bridge, plate plate to the center line between the two bridge piers or pier center line centerline length of the bridge abutment with the front line of the bridge between the centerline length prevail; arch span bridge and culvert to the net shall prevail.

(4) standard span: beam bridge, a bridge between the middle of the plate with two piers centre line length or centerline of bridge pier and abutment of the bridge centerline length between front line bridge is the less; net span arch bridges and culverts to prevail.

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(4) standard span: beam bridge, a bridge between the middle of the plate with two piers centre line length or centerline of bridge pier and abutment of the bridge centerline length between front line bridge is the less; net span arch bridges and culverts to prevail.