antiparticles

antiparticles

美 [?ænti?pɑrt?k(?)l] 　英 [?ænti?pɑ?(r)t?k(?)l]

• n.【物】反粒子
• 網絡反粒子中；反素粒子

詞形變化

復數：antiparticles  

英漢解釋

n.

1. 【物】反粒子

英英解釋

n.	1. a type of particle in an atom that has the opposite electrical charge to the charge that a normal particle has, although they both have the same mass

例句

That leaves CPT symmetry: the equivalent of what you would see if you watched a movie that starred antiparticles run backward in a mirror.

最后，剩下CPT對稱：就像如果電影里的演員是反粒子，然后你透過鏡子，觀看倒著放的電影。

Clearly, many of these antiparticles must be annihilated when they meet particles of ordinary matter.

顯然，這些反質子中的大多數一定在他們遇到正常物質的粒子的時候湮滅掉了。

Some radioactive substances emit positrons, the antiparticles to electrons, and are used in PET (positron-emission tomography) scans.

有些放射性物質會放出正子，它是電子的反粒子，已經應用于正子斷層掃描（PET）。

Particles and antiparticles could still collide, however, since gravitational repulsion is much weaker than electrical attraction.

粒子與反粒子仍然存在碰撞的機會，因為萬有斥力要比電極引力弱得多。

DIRECT TESTS FOR CPT violation can be performed by comparing properties of particles and antiparticles .

要直接測試CPT違逆，可以利用粒子與反粒子間的比較。

Paul Dirac's theory has been experimentally verified and today a wide range of antiparticles have been detected.

保羅?迪拉克理論已經得到實驗驗證，而且今天大范圍的反粒子已經被發現。

The symmetry between particles and antiparticles is woven deep into the foundations of physics.

粒子與反粒子間的對稱性深深地鍥入到物理學的基礎之中。

Another major problem in cosmology is what has caused the universe to contain more particles than antiparticles.

宇宙學的另一主要問題是解釋為什么粒子要多于反粒子。

The scientists also want to compress large clouds of antiparticles into high-density clumps that can be tailored for practical applications.

科學家們還希望能將大片大片的反粒子云壓縮為高密度的反粒子塊，以便進行實際應用。

One notion regarding dark matter particles suggests they have antiparticles, meaning they annihilate each other on contact.

一種關于暗物質顆粒的觀點認為：暗物質顆粒本身存在反粒子，這意味著它們互相接觸后互相自行抵消。

In the same way the proton and neutron should also have their corresponding antiparticles.

同樣地，質子和中子也應該有對應的反粒子。

the convention for antiparticles uses such time-reversed arrows.

關于反粒子采用這樣的時間反向箭頭的習慣約定。

Another idea suggests that dark matter particles are their own antiparticles.

另一種觀點認為：暗物質顆粒同時也是自己的反粒子。

Antimatter is matter that is composed of the antiparticles of those that constitute normal matter.

反物質是由那些常態物質構成的反粒子組成的物質。

Fewer than zero particles being present usually means that you have antiparticles instead.

粒子少于零通常意味著這里存在著反粒子。

Charge reversal is the replacement of all particles with antiparticles.

電荷反轉是將所有的粒子換成其反粒子。

These beams provide new ways to study how antiparticles interact or react with ordinary matter.

這道反粒子束就能為我們提供研究反粒子是如何是作用于普通物質并與之相互作用的全新途徑。