alpha particles 中文意思是什麼
alpha particles
解釋
阿爾發粒子-
Most of the alpha particles would go right through the foil.
大多數粒子總是筆直地穿過簿箔。 -
Alpha particles emitted by radioactive nuclei have energies of a few mev.
由放射性原子核發射出的粒子能量一般為幾個Mev。 -
Alpha particles are positively charged helium nuclei obtained from natural radioactive decay.
粒子是從天然放射性蛻變得到的帶正電的氦核。 -
The fact that the alpha particles travel right through the foil means they travel through the atoms.
粒子徑直穿過簿箔這一事實意味著它們也穿過原子。 -
Very few alpha particles from radioactive sources can travel more than 1 to 3 inches in air before being stopped.
在空氣中從放射源放出的粒子在停止以前只有很少能穿過13英寸的距離。 -
The radiation emitted can either be alpha particles, beta particles, gamma rays or neutrons
由不穩定原子核發射出來的輻射可以是粒子粒子射線或中子。 -
These radionuclides undergo radioactive decay, by emitting harmful alpha particles, beta particles or gamma rays
它們在衰變期間會放出對人體有害的粒子粒子或射線。 -
When alpha and beta particles strike demron, intervening electrons in the salt atoms deflect and slow them down, whereupon they are absorbed into the material
當與粒子撞及底米龍時，會受鹽類原子中的電子影響而偏折並減速，隨之被布料吸收。 -
Construction and expression of rnase - resisting virus - like particles containing partial sequence of alpha - fetoprotein messenger rna
部分序列的耐核糖核酸酶病毒樣顆粒的構建和表達 -
Alpha particles emitted by radioactive nuclei have energies of a few mev
由放射性原子核發射出的粒子能量一般為幾個mev 。 -
Both uranium and plutonium are radioactive, and their activity consists in the emission of what are called "alpha particles".
鈾和鈈二者都具有放射性，它們的放射性包括放射所謂粒子。 -
Our research aims to research and design an spectrometer - identificator to simultaneously or separately detect the fluxes and spectra of protons, alpha particles, oxygen and iron ions distributed in space
為了滿足當前空間環境的探測需要，需要研製一臺全頻道的空間帶電粒子探測譜儀，該譜儀能夠同時測量空間質子、粒子和重離子的能譜和通量分佈。 -
This instrument can automatically send the information from the irradiation belts based on the detecting results, which will provide an foundation for the reinforcement of aircraft irradiation resistance. a multi - functional spectrometer - identificator is developed to measure fluxes and spectra of protons, alpha particles, oxygen and iron ions in space
根據要求自動向地面發送空間不同位置的帶電粒子通量和它與能量關系的訊息，主要用於近地空間輻射環境的探測和監測，為空間飛行器的抗輻射加固提供依據。 -
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。 -
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，不過由於它的電離能力很強，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。 -
When we breathe in radon, the alpha particles emitted in the decay process will cause damage to our lung tissue
氡氣在衰變過程中會放出粒子，當我們吸入氡氣時，我們的肺部便會受粒子影響。 -
Long range alpha particles
長射程粒子 -
For real - time requirement, each water particles cluster is rendered as a small circular area in a plane that faces the viewer, and this small area is texture - mapped with a pre - captured image of water particles cluster, with an intensity - based alpha channel
為滿足實時性要求，使用垂直於當前視線的平面上的一小塊圓形區域，結合紋理映射技術，對水粒子團進行造型。 -
Owing to adopting the ae - e method in identification of particles and modified fast response electronics system in data acquisition and processing unit, the spectrometer can be used to simultaneously or separately detect the fluxes and spectra of protons with energy of 1 - 200 mev, alpha particles with energy of 1 - 200 mev / u ( nucleon ), oxygen ions with energy of 1. 7 - 496 mev / u and iron ions with energy of 2. 5 mev - 1. 0 gev / u
利用這套裝置可探測的粒子的種類和能量分別如下：質子，能量范圍為1 - 200mev ；粒子，能量范圍為1 - 200mev u ；氧離子，能量范圍為1 . 7 - 496mev u ；鐵離子，能量范圍為2 . 5mev - 1 . 0gev u 。利用粒子、質子、氧離子、鐵離子四種單能粒子對該望遠鏡系統和電子學系統進行性能測試和能量刻度。
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