Focal area of ground glass attenuation on LUL, which shows no remarkable interval size or configuration changes on 2 months follow-up CT scan.
左上叶局部毛玻璃影，在2个月的CT随访中无明显的大小及形态改变。
The clinical manifestations were nonspecific, radiographic manifestations included ground glass attenuation, interstitial changes, infiltrates and pleural effusion.
临床表现无特异性，磨玻璃影、肺间质纤维化、浸润影和胸腔积液为常见影像学表现；
Glass plates deposited with metal through vapor deposition were used as attenuation elements.
衰减器采用金属蒸发镀膜衰减片作为衰减元件，连续衰减和步进衰减相结合。
Glass plates deposited with metal through vapor deposition were used as attenuation elements.
衰减器采用金属蒸发镀膜衰减片作为衰减元件，连续衰减和步进衰减相结合。
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