caesium

1. What about caesium-137?: 那铯- 137呢？

2. Radioactive caesium has also been detected.: 还发现了放射性铯。

3. It is cool and filter the precipitated caesium dichloroiodide .: 这是冷却，滤出沉淀的二氯碘化铯。

4. Caesium reduces the size of your picture up to 90%, preserving the original quality.: 铯使你的图片大小高达90%，保留原有的品质。

5. The main radionuclides representing health risk are radioactive caesium and radioactive iodine.: 意味着健康威胁的主要的放射性核素包括放射性铯和放射性碘。

6. Radioactive caesium-137 also appeared in one of the samples, but at levels below the legal limit.: 其中一个样品中还检测到了放射性的铯-137，但是还在法律限定标准之下。

7. His discoveries, which won him the Nobel prize, led to the caesium atomic clock and the hydrogen maser.: 这一获得诺贝尔奖的发现产生了铯原子钟和氢微波激射器。

8. The results show that the efficiency approaches to that of the caesium thermionic energy converter.: 结果表明其效率与铯热离子换能器相近。

9. Atomic clocks rely on regular oscillations of caesium atoms to keep time and are extremely accurate.: 铯原子的均匀振动记录时间，故而十分准确。

10. Radionuclides or isotopes for medical or industrial purposes, such as Cobalt 60, Caesium 131 and lodine 132.: 放射性核素或核素用于医疗或工业目的，例如︰钴60、铯131和碘132。

11. Radionuclides or isotopes for medical or industrial purposes, such as Cobalt 60, Caesium 131 and lodine 132.: 放射性核素或核素用于医疗或工业目的，例如：钴60、铯131和碘132。

12. The recall was started after tests found up to 30.8 becquerels of caesium per kilo of Meiji Step powdered milk.: 此次召回是在经测试发现每公斤明治奶粉含有高达30.8贝克勒尔的铯后，才开始的。

13. Iodine-131 and caesium are more damaging, however. Iodine is actively taken up by the thyroid gland to make hormones.: 碘- 131和铯则更具破坏性，人体的甲状腺要使用碘来制造激素。

14. He said detection of the radioactive element caesium outside the No.1 reactor today was "a bad sign" for a core meltdown.: 他说今天在第一核电站检测到放射性元素铯，这是核心融化的不好迹象。

15. Japanese milk powder maker Meiji has recalled its baby formula after discovering radioactive caesium in the product.: 日本的奶粉制造商明治乳业在产品中发现放射性元素铯后已召回其婴儿配方奶粉。

16. Low dose exposure to caesium-137, even over a long period of time, is perhaps not as damaging to health as we would have predicted.: 低剂量的铯137辐射，即使辐射时间很长，恐怕也不会造成我们所设想的那种对健康的破坏。

17. Previous releases of radioactive iodine and caesium had shown that material from the core of at least one reactor has been released.: 之前放射性的碘、铯的释放表明至少一个反应堆堆芯已被释放。

18. Thee Caesium-137 may be buried in a scrap yard under tonnes of metal, and local officials believe it could have been melted down.: 这块丢失的铯-137可能埋在一个废置场，压在几吨废金属下面；当地官员认为这块材料可能已经被熔化了。。

19. The moisture carryouer was defined by the ratio of caesium concentration in feedwater to caesium concentration in recirculated water.: 蒸汽含水率等于冷凝水中铯的浓度除以循环水中铯的浓度。

20. They touched the powder and daubed it on their bodies like carnival glitter, taking fragments of the radioactive caesium chloride salt home.: 他们触摸粉末，涂在身上，就如狂欢节闪亮的服饰，并将放射性铯氯化盐碎末带回家中。

21. Meanwhile, these methods have been modified and improved by newly developed caesium magnetometers and by proton-procession magnetometers.: 同时，磁法也由于铯磁力仪和质子旋进式磁力仪的发明而得以改进。

22. Every time a gust of wind blows, Mr Sato says it shakes invisible particles of radioactive caesium off the trees and showers them over the village.: 村长佐藤为我们讲到，每次一刮大风，就会把附着在树叶上面的放射性元素铯[2]吹落，撒到下面的村子。

23. The researchers used a focused beam of caesium ions to dislodge molecules of water from the inclusions and measured the amount with a mass spectrometer.: 研究人员用聚焦的铯离子束将水分子自包裹体中打出并用质谱仪测量其数量。

24. Thus, in 1967, SI adopted a more precise definition based on the frequency of the radiation a caesium atom emits when it flips between two energy states.: 所以，在1967年，SI采用了一个更为精确的制定办法，该办法基于一个铯原子在两个能级之间跃迁时的辐射频率。

25. Thus, in 1967, SI adopted a more precise definition based on the frequency of the radiation a caesium atom emits when it flips between two energy states.: 所以，在1967年，SI采用了一个更为精确的制定办法，该办法基于一个铯原子在两个能级之间跃迁时的辐射频率。

热门分类

英语例句推荐