查询词典 sealed radioactive source

There were no radioactive rectitis and other side effect.

无放射性直肠炎等副反应。

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。

Some tritium is used in self-luminous materials (e.g., for watch dials) and as a radioactive tracer in chemical and biochemical studies.

有些氚用作自发发光的磷光剂和钟表面盘，在化学和生物研究中作为放射性示踪剂。

But hang on -- how do we know that radioactive atoms don't senesce ?

但是，听清楚了—我们怎么知道放射性原子不衰老？

But hang on -- how do we know that radioactive atoms do not senesce ?

但是，听清楚了—我们怎么知道放射性原子不衰老？

In the language of biogerontology, radioactive atoms die but they don't senesce .

用生物老年学家的话说，放射性原子死亡了，但是它们并没有衰老。

Article 307 When shipping such dangerous articles as are inflammable, explosive, corrosive or radioactive, a shipper shall appropriately pack the articles in conformity with the rules of the State governing the carriage of dangerous articles, and put on the marks and labels for dangerous articles and submit the written papers relating to the nature and measures of precaution to the carrier.

第三百零七条托运人托运易燃、易爆、有毒、有腐蚀性、有放射性等危险物品的，应当按照国家有关危险物品运输的规定对危险物品妥善包装，作出危险物标志和标签，并将有关危险物品的名称、性质和防范措施的书面材料提交承运人。

Slack water deposits are indicators of water level and age of paleoflood. They can be identified using Quaternary Period geology and hydrology, and can be aged using radioactive isotopes or other methods.

平流沉积物是洪水水位和发生年代记录的载体，利用第四纪地质学和水文学可以把它发掘出来并用放射性同位素或者其它断代方法测定它发生的年代，再通过断面恢复，进行流量推求，这就是古洪水研究。

It is prohibited to discharge radioactive waste liquid by using soakaway, seepage pit, natural crevice, karst cave or by other means prohibited by the State.

禁止利用渗井、渗坑、天然裂隙、溶洞或者国家禁止的其他方式排放放射性废液。

Academic achievement:(1) early study of the electromagnetic wave transmitting and receiving;(2) found that there is penetration of uranium weak penetration of the α and β two kinds of radiation;(3) and Soddy worked together to propose release of radioactive atoms can be α or β atom into another element.

学术成就：（1）早年研究电磁波的发射和接收；（2）发现铀中有穿透力弱的α和穿透力强的β两种辐射；（3）和索迪合作提出放射性原子可以通过放出α或β变成另一种元素的原子。

However it can often be frust ating for a child when people are unable to pronounce their name.

但它往往可以令人沮丧的一个孩子当人们无法断言他们的名字。

All these compounds were obtained from this genus for the first time. Compound, 4-cumylphenol, was a new nature product.

所有化合物均为首次从本属海藻中分离得到，其中4cumylphenol为新天然产物。