英：[ˈælfə ˈpɑ:tikl]
美：[ˈælfə ˈpɑrtɪkəl]
alpha particle如何读
alpha particle是什么意思
阿尔法粒子；
alpha particle英英释义
noun
a positively charged nuclear particle identical with the nucleus of a helium atom that consists of two protons and two neutrons and is ejected at high speed in certain radioactive transformations called alsoalpha, alpha radiation, alpha ray
alpha particle词源英文解释
The first known use of alpha particle was in 1903
alpha particle儿童词典英英释义
aluminum oxidenoun
alumina
alternating currentnoun
an electric current that reverses its direction at regular intervals—abbreviation AC
alternate anglenoun
one of a pair of angles on opposite sides of a line intersecting two other lines and between the two intersected lines called alsoalternate interior angle
one of a pair of angles on opposite sides of a line intersecting two other lines and outside the two intersected lines called alsoalternate exterior angle
alter egonoun
a trusted friend or personal representative
the opposite side of a personality
altar boynoun
a boy who assists the priest in a church service
also-rannoun
a horse or dog that does not finish in the first three places in a race
a contestant that does not win
alpha particlenoun
a positively charged particle that is identical with the nucleus of a helium atom, consists of 2 protons and 2 neutrons, and is thrown at high speed from a radioactive atomic nucleus
alpha particlenoun
a positively charged particle that is identical with the nucleus of a helium atom, consists of 2 protons and 2 neutrons, and is thrown at high speed from a radioactive atomic nucleus
alpha particle医学词典英英释义
alpha particlenoun
a positively charged nuclear particle identical with the nucleus of a helium atom that consists of two protons and two neutrons and is ejected at high speed in certain radioactive transformations called alsoalpha, alpha ray
alpha particle 例句
1 The most common forms occur when an unstable nucleus spits out an alpha particle, consisting of two neutrons and two protons, a beta particle consisting of an energetic positron or electron, or a gamma ray, consisting of a high energy photon.
2 An alpha particle is made of two protons and two neutrons.
3 The mass of an alpha particle is more than 7,000 times larger than that of a beta particle.
4 This means that an alpha particle is a helium atom without the electrons.
5 To that end, the Indian lander and rover carried half a dozen scientific instruments—a 10-centimeter probe to analyze the soil’s thermal properties, an alpha particle X-ray spectrometer and so forth.
6 For example, in 1928, while visiting the University of Göttingen in Germany, Gamow learned about a dilemma physicists faced in explaining the process of alpha decay, when a heavy nucleus such as uranium suddenly expels an alpha particle (a cluster of two protons and two neutrons).
7 In contrast, Convergent plans to use a protein in the immune system called antibodies to deliver radiation-emitting particles, and the radiation comes in the form of alpha particles, which Kantoff says are 1,000 times more powerful than beta particles.
8 Hence, current-gen console owners will likely want to opt for higher frame rates—and while both aforementioned consoles apparently hold close to 60 fps in performance mode, each can still dip into the mid-50s during intense sequences full of alpha particle effects.
9 Thus the alpha particle is an exceptionally stable nuclear structure.
由此可见,α粒子是一种特别稳定的核结构.
10 Upon gaining two electrons alpha particle becomes a helium atom.
粒子获得两个电子之后就变成了氦原子.
alpha particle 同义词
2 阿尔法粒子