CT imaging of the normal lungs is mainly to see CT slices of the normal lungs to clarify the level of the trachea and to be able to show the normal bilateral upper lungs, and to be able to see the dorsal segments of the lower lobes of the left lungs at the level of the deviated lower part of the lungs. At the level of bronchial bifurcation, the anterior and posterior segments of the upper lobes of both lungs and the dorsal segments of the lower lobes of both lungs can be seen, and the right and left main bronchi can be clarified and the bifurcation of the trachea can be seen, as well as the level of the lower level and the level of the pulmonary arteries, and the left and right bronchial tubes are farther away from one another, and can show the anterior segment of the upper lobes and the dorsal segment of the lower lobes, as well as the mesial lobes when the bronchial tubes of both lower lobes are divided out of their basal segments, the lingual lobes, and each of the basal segments of the lower lobes of both lungs, which are generally without There are generally no abnormal shadows and normal inflation of both lungs.