Hall says one possible safety measure is placing a surface called crushable concreteat the end of the tarmac to help stop runaway airplanes.
Hall says one possible safety measure is placing a surface called crushable concreteat the end of the tarmac to help stop runaway airplanes.
霍尔说一个可行的安全措施就是在停机坪上铺一层“可压碎的的混凝土”给跑道上的飞机助停。