In the project of cross-under the highway with pipe roof and culvert box method, the interspace between culvert box and pipe roof is limited by several factors. 管棚-箱涵法下穿越高速公路工程中,管棚与箱涵的建筑空隙受到多方面因素影响,合理的建筑空隙在保证不增加成本的条件下,为施工带来方便。
Combination of skis carving tip-to-tail and quick efficient cross-over and cross-under movements into the new turn produce an early edge set. 雪板从板头到板尾的走刃,结合快速有效的上方和下方穿越动作,使得用刃时机得以提前。