放射性

Ct finding shows transudatory focus mostly appear in the acute period, and fibrotic focus mostly appear in the chronic period. shrink and decrease of the pathological area veins and the exterior lung veins can be observed.

这就要求影像科医生提高对放射性肺炎的认识和诊断准确性，尽可能早期发现放射性肺炎，为临床做到早诊断、早治疗，提供有价值的影像学证据。

Factor analysis was employed to reduce the number of parameters deduced from multiple radiometric methods. The derived principal components f1, f2 are undependent with each other and of identified geological means. The trend analysis on f1 and f2 was conducted to extract the remainder anomalies which reflect the radioactivity elements enrichment formed by fracture structures and locate the spatial positions of thermal underground water.

对于由多种放射性方法造成的多参数，采用了因子分析方法以降低参数量，组成互不干扰而地质意义明确的主成份分量f1、f2，继而对f1、f2进行趋势分析，提取了由构造断裂造成的的放射性元素富集的剩余异常，圈定出地下热储的空间位置。

So this research is meaningful and necessary to meet the requirements of soil decontamination in China.There are many kinds of technologies for decontaminating contaminated soil, such as chemical decontamination, physical decontamination and other kinds of decontamination technologies.

本研究的目的是研究开发放射性污染土壤的清洗去污技术，为本院的土壤去污和最终的处置提供必要的参考依据，而且为其它类型的放射性污染土壤的去污提供借鉴。

The principles, means, examples and newly-developed technologies about radioactive pollution decontaminating in decommissioning of uranium mines and mills are introduced in this paper.

介绍了铀矿冶退役的放射性污染去污的原则、方法、实例及新开发的去污技术，并对我国铀矿冶退役的放射性污染去污在方法和途径上作了探讨。

The patients in treatment group were given Tanreqing Injection 20ml intravenouslly guttae and radiotherapy.

对照组单纯放疗。结果：治疗组和对照组放射性肺炎发生例数分别是5(11.3%)和14(30.4%)，两组之间有显著差别(P.05)，且治疗组无2级及以上放射性肺炎的发生。

The stability ofradioactive microspheres can be improved by coating with ploT-L-lactic acid; however,about 60% of the activity leaches from the microspheres in this process, and approximately10% of the activity leaches after washing with saline. Fortunately, 30% of the activityremained stably in the resin microspheres.

体外稳定性实验结果表明：1采用离子交换法制备的放射性树脂微球标记核素脱落严重，使用聚乳酸包被放射性树脂微球可以提高其稳定性，但是包被过程中约有60％核素脱落，生理盐水洗涤约有10％的核素继续脱落，不过剩余的30％稳定存在于树脂微球上。

In order to achieve the required angular resolution, a sophisticated tracking detection system was established to reconstruct the track of each incident particle, as well as each scatted particle. The upstream detection system consisted of two plastic scintillators (T1 and T2) and two low-pressure multiwire proportional chambers .

He是结构性质比较典型的丰中子核，也是RIBLL可以产生的束流强度较大的放射性核素。2001年3月，我们利用兰州近代物理研究所的放射性次级束流线装置提供的25MeV/n的〓He轰击〓Be和〓Li靶，进行了〓He+〓Be的准弹性散射的研究。

Result:①out of 25 patients,17 exhibited myeloma-related bone lesions on radionuclide imaging,the positive rate was 68.0%,ribs and spine were involved most frequently,162 lesions showed high uptake of radionuclide,the lesions lied in ribs appeared as strings of pearls,and those in sternums and vertebrae showed linear high uptake,the other 4 showed decreased radionuclide uptake.②the positive rate on radiography was 68.0%(17/25),which was the same as that on radionuclide imaging,the patterns were osteoporosis,pathological fracture,osteolysis or two or two and above of these appearances, radiography detected more abnormalities than radionuclide imaging in identical sites(162 versus 144),but radionuclide imaging detected more lesions than radiography in ribs and sternums.

结果：①25例患者中，骨显像异常17例，阳性率68.0%，肋骨、脊柱最常受累，162处病灶表现为异常放射性聚集，其中，肋骨病灶呈串珠样，胸骨及椎体病变呈扁平状或线状，4处表现为异常放射性减低；②x线片阳性率68.0%（17/25例），与骨显像相同，主要表现为骨质疏松、病理性骨折、骨破坏或呈混合性改变，共同检测的部位中，x线片检出的病灶总数较骨显像多（162和144），但骨显像检出肋骨和胸骨病灶较x线片多。

The positive rate on radiography was 68.0%(17/25),which was the same as that on radionuclide imaging,the patterns were osteoporosis,pathological fracture,osteolysis or two or two and above of these appearances, radiography detected more abnormalities than radionuclide imaging in identical sites(162 versus 144),but radionuclide imaging detected more lesions than radiography in ribs and sternums.

结果：①25例患者中，骨显像异常17例，阳性率68.0%，肋骨、脊柱最常受累，162处病灶表现为异常放射性聚集，其中，肋骨病灶呈串珠样，胸骨及椎体病变呈扁平状或线状，4处表现为异常放射性减低；②X线片阳性率68.0%（17/25例），与骨显像相同，主要表现为骨质疏松、病理性骨折、骨破坏或呈混合性改变，共同检测的部位中，X线片检出的病灶总数较骨显像多（162和144），但骨显像检出肋骨和胸骨病灶较X线片多。

Recycle and use waste material as building materials and replace the use of solid clay brick can resolve the contradiction between industry and agriculture,aims to save energy,land,resources and to protect the environment.

在对部分省市可用作建材的工业废渣进行调查的基础上，对其放射性水平、给居民带来的附加量当量进行了检测，提出了防止利用工业废渣生产建筑材料放射性超标的措施与建议。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。