primary ray

Methods: Digital image manage system ( Digora system) was utilized to save and analyze the X ray image information of primary tooth treated by RCT with ZOE iodoform paste. The cases of overfilling were collected from this system and reviewed 3 months after treatment.

方法：利用Digora数字图像处理系统能大量存储X线图像资料的特点，对临床上ZOE碘仿糊剂根充超充的乳牙进行术后3个月的复查。

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We adopt the partial shield lead cell, so that the primary X-ray outside the useful beam decreases to about 10~ (-4).

在对南京大学20Mev电子直线加速器实验室设计中：1.采用了局部铅屏蔽室，使有用束外的初级x线减弱至10~（-4）左右。

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X-ray Analysis of 31 Primary Lung Adenocarcinoma Detected by Health Screening

健康体检发现肺腺癌31例X线分析

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The main X-ray manifestations of gastrointestinal meal barium of primary malignant tumors of the small bowel were stenosis, filling defect, stiffness of involved intestinal wall with destruction of mucosa and loss of valvulae conniventes, intestinal obstruction or intussuseption, dynamic dilatation and ulcer.

消化道钡餐主要X线表现为胸腔狭窄，肠腔内充盈缺损，管壁僵硬，粘膜破坏，环状皱壁消失，肠梗阻或肠套叠，肠管扩张及溃疡形成。

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Conclusion: Chest X-ray and CT are major diagnostic method for primary mediastinal tumors.

结论：胸部X线平片和CT是诊断原发性纵隔肿瘤的主要手段和方法。

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