The major morphogenesis took on increased bronchovascular shadows, dim patch , ground - glass, cloud floccule and lung consolidation.主要形态有肺纹理增粗,淡薄片状影 、 玻璃影 、 絮状影及实变....
伴随着隆隆的低沉噪声，螺旋桨开始旋转起来。With a low-pitched rumbling noise, the propeller began to rotate.头顶上，直升机在呼啸，巨大的螺旋桨叶片搅动着空气。Overhead, the chopper roared and the big blades churned the air.发动机使螺旋桨旋转起来。The engine turned a propeller....