helicopter emergency medical service 直升机紧急医疗服务 ; 医疗服务
helicopter medical team 直升机医疗队
helicopter medical service 直升机医疗服务
Important Role of Medical Helicopter in Rescue for Astronaut in the Landing Place.
医疗救护直升机在航天员医疗保障中所起的重要作用。
A medical helicopter crashes on the roof of a hospital in Grand Rapids, Michigan, catching fire.
在密歇根州大急流市,一部急救直升机在医院屋顶坠毁,并引发大火。
Four people are dead after a medical helicopter crashed in a suburban Washington park early Sunday.
周日早上,一架医疗直升机在华盛顿一远郊公园坠毁,造成四人死亡。
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