放射性

The exemptible radioactive content in the wastes shall be determined by the State Council.

废弃物中的放射性物质的豁免浓度由国务院制定。

They were supplanted by Ichmas, who Flores said were likely responsible for decapitating the Huari official well after he was buried in an attempt to erase all vestiges of a tribe that dominated them for years.

目前，专家正在对这具古老的木乃伊做进一步研究，不久之后它将被送到利马接受放射性碳测试，以确定它的实际年份。另外，与木乃伊同时发现的还有其他9具遗骸，他们可能是男性木乃伊的陪葬。

A green radioactive mineral that is a hydrous crystalline phosphate of uranium and copper.

铜铀云母一种绿色的放射性矿物，为铀和铜的氢化结晶云母

Low γ ray with 59.6keV energy acts as excitation for rare earth inaqueous and organic phase samples in separation processes by solvent extraction. As aresult, characteristic K series X-ray fluorescence of rare earths emitted. X-ray wasdetected by high purity planar Ge after transmitting Be window. The signals wereamplified by pre-amplifier or main amplifier, and the amulated signals are converted todigital ones.

对溶剂萃取法生产稀土流程中的有机相和水相试样，采用放射性核素〓的59.6keV单色能量激发稀土元素，得到特征K系X射线荧光，透过Be窗经高纯平面锗半导体探测器检测其强度，再经放大器、模数转换和多道缓冲存诸记录试样的能谱。

The contents of the natural radioactive elements,〓 and 〓 incrystal will give a strong effect on the experimental results.

CsI(T1)晶体内部天然放射性元素〓和〓的含量对实验的结果有很大的影响。

In conventional indirected parameter estimate, such as Weighted Least Square Method, the changing activity of the injected radiotracer is conventionally measured through multiple consecutive PET image reconstructions. The image of the radioactivity distribution in each frame is reconstructed independently and the whole set of frames is then used to estimate the distribution of the physiological parameter of interest by the application of an appropriate pharmacokinetic model to the time radioactivity curve either of appropriately selected functional regions or of each image element.

传统的间接参数估计方法如加权最小二乘参数估计方法(Weighted Least SquareMethod，WLS)，需要首先从测量数据重建出PET动态放射性活度图像，然后在这些时间上连续的重建图像应用适当的动力学模型上估计感兴趣的生理参数，然而PET重建图像中往往含有极大的噪声，这些噪声将影响参数估计的准确性。

Danshen insection and tetramethylpyrazine have been used in animal experiments and clinical studies for preventing radioactivity lung injury which have given us some good results.

目前已经有丹参和川芎嗪用于防治放射性肺损伤的实验和临床研究的报道，并取得了一定的成效。

Matrine can lessen radiation pneumonitis in mice,and its protective efficacy was better than danshen insection and tetramethylpyrazine.

苦参碱能减轻小鼠急性放射性肺损伤，且其防护作用优于丹参和川芎嗪。

Result: in substantial stage, thirty-four patients showed intrapelvic radioactive concentration imaging out of the baldder, in which sixteen were in the left side and eighteen were in the right. in delayed stage, radioactive concentration still existed, with the positive rate of 56.7%.

结果：34例在实质期内可见膀胱外盆腔大小不等的同位素浓聚显像，其中偏左侧16例，右侧18例，延迟期放射性同位素浓聚仍持续存在，阳性率56.7%。26例未见明显持续性同位素浓聚。

This point can reasonably account for the failure of directly oxidative radioiodination of alkaloids observed in our lab and in other labs over the world. The in vivo biodistribution and pharmacokinetics of -iodo-α-Allocryptopine and -iodo-chelidonine were studied in normal mice.

这一机理可较好地解释为何难于通过直接氧化法对生物碱化合物进行放射性碘标记研究了碘-131标记的α-别隐品碱和白屈菜碱在正常小鼠体内的组织分布和代谢动力学。

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。