放射性测量的

A kind of in-situ measurement method is introduced in this paper, by which the radioactivity in the clayey sand of ground surface contaminated by radioactive particulates can be investigated.

本文简要介绍一种对放射性微粒污染的地表砂土中放射性核素活度的就地测量方法。

High measure precision: High precision and low operation error can meet needs of various levels of operator, identical measurement results can be gained in spite of different practical experiment of operator.

测量精度高：不但测量精度高，且个人操作误差小，不同的测量人员，不管有无经验均可获得相同的测量值。●使用范围广泛：可测大型、重型工件某个部位的尺寸，也可适用于高温、放射性等恶劣环境条件下的测量。

In this report, the intercomparison of radionuclide measurement with γray spectrometer for environmental samples organized by State Environmental Protection Administration recently was introduced.

介绍了国家环境保护总局组织的一次全国环境样品放射性核素γ谱测量比对。

Since 1980s, ICP-MS has been used overseas for the determination of uranium, thorium, neptunium, and plutonium in environmental samples. ICP-MS is one of the most suitable analysis techniques for the measurement of the long-lived radionuclides.

自八十年代以来，国外对ICP-MS测量环境样品中的铀、钍、镎和钚的研究表明，ICP-MS在测量长寿命放射性核素方面是最有发展前景的测量技术之一。

TGS method can determine quantitatively with high accuracy transuranic nuclides in heterogeneously distributed media with medium- and high-density, and is thus widely used to assay the location and quantity of selected radioisotopes in scraps and wastes within sealed containers.

它是专用于准确定量测量中、高密度非均匀分布介质中的放射性核素及其含量，是核设施中可回收物以及核废物测量分析的主要方法之一。

Through analysis the average CR of cortex and that of caudate nucleus and lentiform have correlation with MMSE scores of HD.

与磁共振成像比较，分析病人的PET影像特点；测量了病人的平均皮层、豆状核和丘脑的间接放射性计数，与病人的神经心理测量得分、统一的HD运动评分和生活自理能力评分进行比较分析。

This paper primarily presented the radioactive characteristics about the strata in Qiangtang basin and the granite in southeast outside of basin based on the following data, radioactivity gamma-ray spectrum survey in field, some chemical analysis data of granite, car-borne gamma-ray spectrometry made by other geological department, and a few regional investigation material so on.

以野外放射性能谱测量数据和部分化学分析数据为基础，结合其他部门在该区的汽车能谱测量数据和少量区调数据，对羌塘盆地出露地层及其东南外围地区花岗岩的放射性特征进行了初步分析。

The result indicates that response of activity is a important parameter, which shows capability of detector for detecting radioactive nuclides, and must be measured at prescriptive condition.

试验结果表明，活度响应是反映探测器对放射性辐射探测能力的重要参数，必须在规定的测量条件下进行测量。

But it is difficult to measure the irregular surface directly,especially for post-irradiation speciments.

但此参数不易直接测量，对于辐照后的放射性试样其测量更加困难。

After interaction nuclides was removed using TRPO solvent extraction, Determination of radioactivity of 90Sr or 90 Y in waste water using Cerenkov counting method is studied.

研究了经TRPO萃取去除放射性废水中的干扰核素后，用切伦科夫计数法测量90Sr或90Y的放射性浓度。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失