A highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium.

一種極不穩(wěn)定的放射性元素老王黄色网站中文字幕，鈾和釷腐爛的產(chǎn)物亚洲级黄色视频。

A highly unstable radioactive element (the heaviest of the halogen series); a decay product of uranium and thorium

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An agent, such as ultraviolet light or a radioactive element, that can induce or increase the frequency of mutation in an organism.

誘變劑有機體中的一種可誘發(fā)或者增加突變的次數(shù)的因子，如紫外線或放射性元素

Polonium is a highly radioactive element and a metalloid.

釙是高放射性的元素亚洲综合久久小说专区图片，金屬欧美性爱一级片免费看。

In reality the proportion of the hypothetical element was far lower and it took several years to show unequivocally that pitchblende contains at least one highly-radioactive material which is a new element in the sense that chemistry attaches to the term.

實際上這種假設(shè)中的元素的濃度要小得多，我們花了幾年時間才明確無誤地證明瀝青鈾礦物質(zhì)中至少含有一種高放射性物質(zhì)国产视频91，在化學(xué)意義上這就是一種新元素久2无码视频在线观看。

In July 1898, Madame Curie and her husband got a great success that they discovered the radioactive element, polonium.

1898年7月，居里夫人和她的丈夫獲得了很大的成功—他們發(fā)現(xiàn)了放射性元素釙成熟丰满熟妇高潮XXⅩ。

In July 1898, Madame Curie and her husband got a great success that they discovered the radioactive element, polonium, which Marie named after Poland.

1898年7月久国产在线，居里夫人和她的丈夫取得了一項極大的成就-----他們發(fā)現(xiàn)了一種放射性元素，瑪麗以波蘭這一名稱的字頭命名它為釙国产在线A级在线视频。

And sure enough, only a few months later the decay of the atom nucleus in the radioactive element cobalt 60 revealed that it did not follow the principles of mirror symmetry.

幾個月以后国产黄色网页，利用放射性元素Co60的核衰變所做的實驗表明鏡像對稱性不成立。

A radioactive element of the actinide series; found in uranium ores.

錒類的放射性元素老色鬼超碰人人操，見于鈾礦中。

Finally, the real prototypeof multi-channel intelligence isotope thickness gauge is introduced, using 241Am as a radioactive element.

最后福利网在线观看亚洲AV，給出了以241Am低能γ射線源作為工作源所實現(xiàn)的多通道智能化同位素測厚儀的特性和應(yīng)用范圍14露出粉嫩小奶头网站。