In Seattle, University of Washington student Alec Bueing showed off the place where his department tests the drones. "It's just a big room that we move the tables and chairs out of. ... If it happens to get out of control toward the windows we reduce any damage," he explained. Lum explained why they test drones inside a building. He said it takes a very long time to get official permission to fly outside.__________________________西雅图华盛顿大学一位名为Alec Bueing的学生展示了他们无人机试飞的地方."这个大房间其实是我们把桌子和椅子都挪出去了,这样做是为了无人机失控撞向窗户时,能减少损害."他解释到. Lum解释了为什么他们在室内测试无人机.他说为了获得官方允许在室外试飞,花了很长时间._____________________________
