台阶式溢流坝是一种全新的泄水建筑物形式.Stepped spillways is a type of new spillway structure.涵闸具有挡水、泄水的作用.Culvert and sluice block and sluice water.泄水建筑物的磨蚀问题是万家寨水利枢纽工程的主要技术问题之一.The abrasion of water release structure is of the main techni...
我慢慢追上了跑在我前面的人.I was slowly closing on the runner ahead of me.他速度太快,猛地撞上了前面的车.He was going too fast and rammed into the car in front.浓雾弥漫,司机看不清前面的路.It was so foggy that the driver could hardly make out the way ahead....