放射性

Main mineral resources are tungsten, tin, bismuth, molybdenum, copper, iron, tantalum, niobium, lead, zinc, gold, cobalt soil, Beryl, Ying Dan, K-feldspar, quartz stone, marble, crystal stone, kaolin, etc. 48 Species, groundwater resources of the main hot water mineral water, hot spring spa resort with 13, Chung, about 1,400 cubic meters, the highest temperature of 70 degrees Celsius, with weak radioactive radon and useful elements of the human body, there are important medical value .

矿产资源主要有钨、锡、铋、钼、铜、铁、钽、铌、铅、锌、黄金、钴土、绿柱石、莹石、钾长石、石英石、大理石、水晶石、高岭土等48种；地下水资源主要有热水各矿泉水，温泉风景区热水泉眼有13处，日涌量约1400立方米，水温最高70摄氏度，含弱放射性氡和对人体有益元素，有重要的医疗价值。

Methods BTXA labeled with125Iwas obtained. The radioactivitymeasurementwas taken tomeasure the solubility ofBTXA in gel and BTXA solution. The rightgastrocnemiusmuscles of12 SD ratswere injectedwithBTXA geland the leftgastrocnemiusmuscles injectedwith normal salinewere used as controls. HE staining and 1% gold chloride stainingwere used to study the tissue changes 6 months and 12 months afterBTXA gel injection and transmission electronmicroscopy was used to observe the ultrastructural changes.

将BTXA行示踪标记配制125I-BTXA水凝胶与125I-BTXA水溶液，进行样品放射性强度测定。12只SD大鼠用随机数字表法分为A、B两组，每组6只，大鼠右侧腓肠肌注射BTXA水凝胶，左侧腓肠肌注射等体积生理盐水作对照，于注射后6个月、12个月切取腓肠肌标本，常规病理HE染色、1%氯化金染色，透射电子显微镜观察组织结构变化。

They are supergene minerals occurring in oxidized zones of uranium deposits and assuming green-yellow colors. This kind of minerals can be used as one of the mineral indicators in search for uranium deposits. They are mainly composed of ~(3-) and ~(2+), in which As and U are known as poisonous and harmful elements causing environmental pollution.

铀酰砷酸盐矿物是主要产出于铀矿床氧化带中比较特征的黄绿色表生矿物，是寻找原生铀矿床的重要矿物学标志，化学组成主要是[AsO4]^3-和[UO2]^2 ，其中As和U均是对环境造成极大危害的有毒或放射性有害元素。

When conventional radiotherapy of nasopharyngeal carcinoma is practiced with the facio-neck field and inferior-neck-supraclavicular field by the half-beam technique, it is confirmed that the dose-overlap region at the match-plane is smaller than the whole-beam technique.

背景 近年来放射治疗剂量学研究表明，鼻咽癌应用面颈联合野与下颈切线野放射治疗时，与全束照射技术相比，半束照射技术的照射野衔接处剂量重叠区较小，理论上可能降低放射性神经损伤的发生率。

In PET scanning the patient receives a short half-lived radioactive drug and receives approximately the amount of radiation exposure as with two chest x-rays.

宠物扫描病人获得短一半住放射性药物，并接收辐射暴露量大约为两名胸部X光。

An investigation on radionuclide accumulation by native halophytes and its influencing factors,plant variety and parts,soil K content and profile contribution of radionuclide,was carried out for the feasibility of radionuclide phytoremediation at a radionuclide contamination site,in China.

本研究在某放射性典型污染区域取样，测量了该区域盐生植物及其生长土壤的137Cs含量，以生物富集系数为指标，分析了不同核素土壤分布、K元素含量等因素对BC值的影响。

Excavations of the ditch have recovered antlers that were left behind deliberately and it was by testing their age through radio carbon dating we now know that the first henge was built over 50 centuries ago, that is about 3,100 BC.

经放射性碳年代测定法测试在挖掘好的沟渠里留下的用以修缮的鹿角，得知第一个圆形石结构始建于5000年前，即公元前3100年。

The stability of Pt-SDB on its catalytic activity and the Pt contained in Pt-SDB have been studied during three years in isotopic exchange between tritium oxide and hydrogen.

引言在对含放射性氚水的处理过程中，基于液相水-氢同位素催化交换的工艺已开始应用。

It has been tried to in- duce active hydrolytic grop to the ligands of BAT, attempting to use chemical hydrolyses instead of biological hydrolyses to find ide- al brain radiopharmaceuticals. However, because of the immense work, the shortage of funds, only the syntheses of some latents have been done in this theses, and further study is still needed.

本论方中企图通过对BAT类配体引入活泼水解基因，采用化学水解代替生物水解找到理想的脑放射性药物，但因工作量大，消耗经费等问题，本论文中只作了一些潜体的合成，有关工作，有待于进一步研究。

Rnsults There were brain areas that distributing of radioactivity diminution in interictal SPECT in all 69 cases ,and there were brain areas distributing of radioactivity heighten in ictal SPECT in all 69 cases.

结论伽玛刀治疗脑软化灶导致的癫痫是有效的，而且无痛苦、无出血、无感染、无死亡、术后恢复快，其中以局限性发作效果最好；对脑软化灶导致癫痫的患者行SPECT检查，只有发作间期放射性分布减低和发作期增高在同一脑区才被确认为致痫灶；以上方法可明显缩小靶区体积。

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。