放射性

Also it can be used in the nuclear science and engineering research for absolute measurement of nuclear decay rate.

它可供计量实验室建立放射性活度基准设备用，也可用于核科学研究和工程中核衰变率的绝对测量。

Now, on the other hand, we're being told, in effect, Sure everything changed, but not radioactive bombardment and its rate of decay -- they have remained at the same level for billions of years.

"现在，在另一方面，我们被告知，实际上是"相信一切变了，但没有放射性轰击及其衰减率--他们都保持在同一水平，为十亿年。

What's more, an organism could conceivably seem to be, by today's assumptions of yesteryear's radioactive bombardment levels and rate of decay, thousands or even millions of years old only days or months after its death.

更何况，一个有机体可以想象似乎是，今天的假设的脸庞上的放射性水平轰炸和衰减率，十万甚至几百万年的历史，只有几天或几个月后，其死亡。

The main features include reactor core, heat transform system and engineering safety features, etc.

本论文将采用概率安全评价技术分析这一事故的放射性风险，并提出降低风险的建议。

Using environmental radionuclide 210Pb to study the soil erosion and sediment had great application value and potential. When the nuclide was settled on the surface with atmosphere, it was absorbed by the soil particle quickly. The soil erosion rate on the scale of 100 years was traced through the remotion of nuclide in soil and its regular distribution nude.

利用环境放射性核素210Pb来研究土壤侵蚀和沉积具有很大的应用价值和潜力，当核素随大气沉降到地表时，迅速被土壤颗粒吸附，通过其在土壤间的移动和有规律的分布模式可以示踪100年尺度上的土壤侵性速率。

Of the methods of assessing heart function in patients with cor pulmonale, radionuclide ventriculography is more valuable one than others such as chest roentgenography, electrocardiography and echocardiography.

放射性核素检查克服了胸片、心电图、超声心动图等常规检查的一些缺点，是检查肺心病病人心功能的一个较有前途的手段之一。

A method is described for the determination of ruthenium in solidified radioactive waste by flame atomic absorption spectrometry.

研究了火焰原子吸收法测定放射性废物固化体浸出液中模拟核素钌的测定方法。

METHODS: In the rat cardiac hypertrophy model produced by constriction of the abdominal aorta, urotensin II binding sites in myocardial sarcolemma were determined with radioligand assay first day and 30th day after operation.

在腹主动脉缩窄复制的大鼠压力超荷性心肌肥大模型上，采用放射性配基结合技术，测定术后1 d和30 d大鼠心肌浆膜上UII受体的结合位点。

In addition,the radio contamination in scintillation chamber is analyzed.

最后对闪烁室的放射性污染进行了理论分析。

The relationship between the bile flow and cholecystokinin, gastrin,and secretin hormones in the rabbits after traumatic stress;2. Levels of GAS and EGF serum were determined by specific radioimmunoassay method.

观察维胃方对大鼠溃疡面积的改变；检测大鼠胃液pH值变化；通过石蜡包埋、病理切片染色观察溃疡愈合质量，并进行镜下分析；采用放射性免疫法检测大鼠血清表皮生长因子和胃泌素水平的变化。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。