great span meaning in Chinese

大跨度

An intense storm cloud forms over south africa ' s highveld . the highveld contains the greatest span of remaining grassland in southern africa
一股强暴风云在南非高原的上空形成。在这片高原上的，是南非现存最广阔的草原。
The cable - stayed bridge has become a more hopeful bridge style in the great span bridges because of its great merits , such as its great power for span , good performance of structure , brief construction , easy to maintaining , model legerity , lower cost and restricting noises . nowadays , some new bridge structures such as low pylon cable - stayed bridge and no back - stays & inclined pylon cable - stayed bridge etc . have become the ones for the building owners to appreciate when they construct the middle - span bridges
斜拉桥以其跨越能力大,结构性能好,施工简便,易于维修,外型轻巧,造价便宜,且能限制噪音等优点,已成为大跨度桥梁的一个发展方向。现今,矮塔斜拉、无背索斜拉等新颖的桥梁结构型式,在中等跨度的桥型中已占有较大竞争优势,成为许多业主欣赏的新桥型。