A thickened carotid intima-media layer is a surrogate marker for heart attack and stroke. 增厚的颈动脉内膜中层厚度是心脏病发作和中风的标志。
The thick and steady inversion layer in the mid tropospheric and low-layer cold layer were the direct cause of large-scale frozen rain. 深厚而稳定的对流层中层逆温层和低层冷层的存在是大范围冻雨出现的直接原因。