P - polonium 中文

polonium n.【化學】釙。

polony
The alpha particles released from polonium - 210 have a very low penetrating power and can be stopped easily by the outer layer of skin or a sheet of paper . it is unlikely that the particles can affect human body through direct irradiation . however the ionization power of alpha particles is very high 釙210釋放的阿爾法粒子穿透能力很弱，人類的皮膚或一張紙已能隔阻它，粒子經照射影響人體的機會很微，不過由于它的電離能力很強，如果人類吸入或進食含有釙210的物質，其釋放的阿爾法粒子就能直接破壞內臟細胞，即使所吸收的份量不多，也會損害身體健康，急性高劑量阿爾法輻射可以引致輻射中毒。
The department of health today december 8 called on members of the public who had visited london between october 29 and november 2 to take note of an updated statement issued by the health protection agency of england and wales concerning the case of polonium - 210 in london on november 1 this year 2006年12月8日有關釙- 210事件的最新公共生發布生署今日十二月八日呼吁市民留意英格蘭及威爾斯生防護局發出有關于十一月一日倫敦釙- 210事件的最新公共生聲明。
The lethal dose for acute radiation exposure is generally about 4 siverts . one becquecel of polonium - 210 causes a radiation dose of 0 . 51 micro sivert 956sv if ingested , and 2 . 5 956sv if inhaled . since polonium - 210 has an activity of 1 . 66 x 10 在進食或吸入1貝可bq放射性活度的釙210以后，可以分別吸收到0 . 51微希沃特956sv和2 . 5微希沃特956sv輻射劑量，而每克釙210有1 . 66 x 10
Over 25 isotopes of polonium are known , with atomic masses ranging from 192 to 218 . polonium - 210 , the predominant isotope of polonium , is radioactive and emits alpha particles on decay 現時已知道釙元素有25個同位素，它們的質量數由192至218 ，釙210是當中顯著的一個同位素，具放射性特徵，會釋出放射性阿爾法粒子。
Polonium - 210 can be used to eliminate static electricity in machinery , remove dusts from photographic film and camera lens , and provide heat energy for thermoelectric power devices in space applications 釙210可消除機器所產生的靜電去掉照片底片和攝影機鏡頭上的污塵及在太空工業上為恒溫發電機提供熱能。
We found that pitchblende contains at least two radioactive materials , one of which , accompanying bismuth , has been given the name polonium , while the other , paired with barium , has been called radium 我們發現瀝青鈾礦物中至少含有兩種放射性物質：與鉍伴生的命名為釙，與鋇伴生的命名為鐳。
Before broaching the subject of this lecture , i should like to recall that the discoveries of radium and of polonium were made by pierre curie in collaboration with me 在開始討論這次演講的話題之前，我還想回憶一下，鐳和釙發現是皮埃爾?居里與我合作完成的。
Polonium - 210 , a naturally occurring isotope of polonium , is found in all environmental media , such as in soil , air and even in human body , at very small amounts 釙210是釙元素的一個同位素，在所有自然環境中，例如泥土大氣以至人體都可以找到極少量釙210 。
That compresses the plutonium while it is simultaneously bombarded with neutrons from a trigger made of polonium , and thus begins the second stage 這個過程能壓縮钚，并與此同時钚也會受到由釙組成的觸發器散發出的中子的轟擊，這樣就引發了第二個階段。
The hpa appeal was made after the death of a man who might have been exposed to the radioactive material called polonium - 210 po - 210 英國生防護局是鑒于一名男子因接觸過一種名為釙- 210的放射性物質后死亡而發出是項聲明。
The recent death of a russian ex - spy in britain has been linked to the presence of a radioactive polonium - 210 in his body 最近一名俄羅斯前特工在英國中毒身亡，該事件被指與在死者體內發現的放射性釙元素有關。
Polonium - 210 is also present in the fine tobacco hairs , coming from the phosphorus fertilizer used in growing tobacco plant 煙草上的茸毛含有微量釙210 ，主要是來自土壤和菸草使用的磷肥。
Polonium is a chemical element with the symbol po and atomic number 84 . it is a silvery white metal 釙polonium是一種化學元素，它的符號是po ，原子序數為84 ，它是呈銀白色的金屬。
Due to its scarcity , polonium - 210 for commercial use is produced artificially in a nuclear reactor 由于來源缺乏，商業用的釙210是在核反應堆人工制造的。
Potassium - 40 , uranium , thorium , radium , carbon - 14 , tritium and polonium are some examples 例如鉀- 40鈾釷鐳碳- 14氚釙等。
What is polonium - 210 釙210是甚么？
What is polonium 究竟釙元素是什么？
Analytical method of polonium - 210 in water - method of preparing sample by electroplating 水中釙- 210的分析方法電鍍制樣法
Radioactive polonium - 210 放射性釙210元素

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polonium

polonium n.【化學】釙。

polony

Before broaching the subject of this lecture , i should like to recall that the discoveries of radium and of polonium were made by pierre curie in collaboration with me 在開始討論這次演講的話題之前，我還想回憶一下，鐳和釙發現是皮埃爾?居里與我合作完成的。

Polonium - 210 , a naturally occurring isotope of polonium , is found in all environmental media , such as in soil , air and even in human body , at very small amounts 釙210是釙元素的一個同位素，在所有自然環境中，例如泥土大氣以至人體都可以找到極少量釙210 。

That compresses the plutonium while it is simultaneously bombarded with neutrons from a trigger made of polonium , and thus begins the second stage 這個過程能壓縮钚，并與此同時钚也會受到由釙組成的觸發器散發出的中子的轟擊，這樣就引發了第二個階段。

The hpa appeal was made after the death of a man who might have been exposed to the radioactive material called polonium - 210 po - 210 英國生防護局是鑒于一名男子因接觸過一種名為釙- 210的放射性物質后死亡而發出是項聲明。

The recent death of a russian ex - spy in britain has been linked to the presence of a radioactive polonium - 210 in his body 最近一名俄羅斯前特工在英國中毒身亡，該事件被指與在死者體內發現的放射性釙元素有關。

Polonium - 210 is also present in the fine tobacco hairs , coming from the phosphorus fertilizer used in growing tobacco plant 煙草上的茸毛含有微量釙210 ，主要是來自土壤和菸草使用的磷肥。

Polonium is a chemical element with the symbol po and atomic number 84 . it is a silvery white metal 釙polonium是一種化學元素，它的符號是po ，原子序數為84 ，它是呈銀白色的金屬。

Due to its scarcity , polonium - 210 for commercial use is produced artificially in a nuclear reactor 由于來源缺乏，商業用的釙210是在核反應堆人工制造的。

Potassium - 40 , uranium , thorium , radium , carbon - 14 , tritium and polonium are some examples 例如鉀- 40鈾釷鐳碳- 14氚釙等。

What is polonium - 210 釙210是甚么？

What is polonium 究竟釙元素是什么？

Analytical method of polonium - 210 in water - method of preparing sample by electroplating 水中釙- 210的分析方法電鍍制樣法

Radioactive polonium - 210 放射性釙210元素