放射性

Objective: To analyze 1HMRS changes in radiation cerebrum damage in pathology.

目的：从病理学角度分析放射性脑损伤早期的~1HMRS变化，为~1HMRS的临床应用提供理论依据。

A radioactive isotope of cesium used in radiation therapy.

铯的一种放射性同位素，用于放射疗法。

The nuclear reactions in the initial study, the discovery of the neutron in 1932 and in 1934 the synthesis of artificial radionuclides is a representative The results of .40 before and after the age of nuclear physics has entered a phase of great development .1939, the Hahn and Strassman found that the phenomenon of nuclear fission in 1942, Fermi established the first fission chain reactor, which is human with nuclear energy start.

在初期的核反应研究中，1932年中子的发现和1934年人工放射性核素的合成是具有代表性的成果。40年代前后，核物理进入一个大发展阶段。1939年，哈恩和斯特拉斯曼发现核裂变现象，1942年，费米建立了第一个链式裂变反应堆，这是人类掌握核能源的开端。

Pitchblende and chalcolite are much more radioactive than uranium itself.

沥清铀矿和铜铀云母比纯铀的放射性强得多。

Curies research into the properties of two different uranium ores, pitchblende and chalcolite. led to the discovery of radium and polonium, other radioactive elements.

居里对两种沥青铀矿和铜铀矿的性能研究引导了镭和钋以及其他放射性元素的发现。

Objective To inquire early effect of thyroid function after radiotherapy for patients with nasopharyngeal carcinoma,clinical characteristic,evaluation index,and provide the basis for the diagnosis.

目的探讨辐射对鼻咽癌病人甲状腺功能的早期影响，观察其临床症状、检测指标的诊断价值，为放射性甲状腺损伤的诊断提供依据。

Expressions of ChAT mRNA and protein were enhanced in 9 of the 18 lung tumor specimens; and expressions of ChoK mRNA and protein were increased in 14 of 18 lung tumor specimens compared with those of normal lung tissues. 8 of 18 lung cancer specimens were obvious increased in expressions of both ChoK and ChAT.

结果 18例肺癌的PET/CT图像均显示胆碱放射性摄取明显增高，18例肺癌组织细胞中，14例Chok mRNA及蛋白质的表达比正常肺组织升高，9例肺癌组织细胞ChAT mRNA及蛋白质表达升高，其中8例Chok及ChAT表达均升高。

How ever, for radium-226 s ource of activ ity less that 750Bq to be used with diffusion cloud chamber, monitorin g instrument is not

惟用於扩散云室而放射性活度少於750Bq的镭-226放射源，则无需监察器。

Synthetic vanillin is prepared from coal tar, which has no radioactivity.

合成的香兰素是通过处理煤焦油而得来的，是没有放射性的。

Green room: Cockscomb addition to uranium and other radioactive; Aloe three of vinyl chloride, hydrogen sulfide, benzene and other organic matter, and absorb dust, bacteria; cactus absorb the infection; aspartic In addition to heavy metal particles; Chlorophytum is very suitable for on raising plants indoors and do not bother Oh!

房间养几盆绿色植物：鸡冠花除铀等放射性；芦荟除三氯乙烯、硫化氢、苯等有机物，并吸收灰尘、细菌；仙人掌吸收病菌；天门冬除重金属微粒；吊兰是非常适合室内养植且不费心的植物哦！

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。