名词定义中文名称：起沙风英文名称：sand-driving wind定义：当风力逐渐增大到某一临界值以后，地表沙粒开始脱离静止状态而进入运动，使沙粒开始运动的临界风速称为“起动风速(threshold wind velocity
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至少有30个人在建造同一座沙堡城市，每个人都在谈笑风生，一起干活！
At least 30 people were building a city of sandcastles, and everyone was chatting and laughing and working together!
风起沙扬，以自然的速度撞击着小路向前，至沙海之交，建设进行着。
The wind-blown sand forms natural speed bumps along the route. Where the road meets the sea, construction has begun.
这能使沙燕儿在风小时能起，风大时也能稳，其飞行性能优于其他类型的风筝。
This can make the sand in the wind can be planted hours, winds can also be stable, its flight performance is better than other types of kites.
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