A horizontal bar over a particle symbol is used to designate the antiparticle.
粒子符号上加一横，用来表示反粒子。
According to the theory, matter can only be created in particle-antiparticle pairs.
依照理论，物质只能在粒子-反粒子对中产生。
When a particle and its antiparticle meet they can mutually annihilate and produce energy.
当粒子和它的反粒子相遇时，它们会发生湮灭并产生能量。
This property, often called " helicity, 'serves to differentiate the neutrino from its antiparticle."
这种性质通常称为“螺旋性”， 可以用来区分中微子和它的反粒子。
Each subatomic particle has its antiparticle, its properties being equal and opposite to those of the particle.
每一种亚原子粒子都有其反粒子。反粒子的各种性质与对应的粒子相同或相反。
A subatomic particle with the same mass as the electron but positive charge (it is the antiparticle of the electron).
与电子的质量相等但带正电荷的亚原子粒子(是电子的反粒子)。
When a particle encounters its antiparticle, they "annihilate" each other, disappearing in a high-energy flash of light.
当一个粒子遇到它的反物质的时候，他们会湮灭彼此，同时放出夺目的高能闪光。
To release it, just allow an antiparticle to come into contact with normal matter, and then capture the energy released.
而且只需要将反物质和它所对应的正常物质进行接触就能帮助它释放能量并进行能量收集。
The symbol used to denote an antiparticle is the same symbol used to denote its normal matter counterpart, but with an overstrike.
过去常用于表示一个反粒子的符号是以用来 表示它的常态物质版本的相同符号，仅有少许不同。
For each particle there should be a corresponding antiparticle with exactly the same mass and lifetime but with an opposite electrical charge.
每个粒子都应该对应着一个反粒子，它们的质量和寿命完全相同，但带有相反的电荷。
When an antiparticle meets its corresponding particle, both are annihilated and the corresponding energy released as photons of radiant energy.
当反粒子与相应粒子相遇，两种粒子都湮灭，相应的能量变为光子的辐射能。
Upon collision, the conversion of a particle and its corresponding antiparticle into pure electromagnetic ENERGY (called annihilation radiation).
粒子和对应的反粒子碰撞后，被完全转化为电磁辐射能量。
Thecurrent "standard model" of physics holds that each particle -protons, electrons, neutrons and a zoo of more exotic particles - has itsmirror image antiparticle.
在当前有关物理学的“标准模型”中，包括质子、电子、中子以及大量更怪异粒子在内的每一种粒子都有其反粒子“镜像”。
He further predicted that every elementary particle with a spin has its counterpart with the same mass but opposite electric charge, or that a particle has an antiparticle.
他进一步预言每一种自旋为的基本粒子都有质量相同但电荷相异的对应粒子，或者说，就是每个这样的粒子都有一个反粒子。
The polarised photons were able to take the place of the particle and the antiparticle in Dr Hardy’s thought experiment because they obey the same quantum-mechanical rules.
按照哈代的假说，相互对立的光子能取代物质和反物质因为它们遵循相同的量子力学原理。
The polarised photons were able to take the place of the particle and the antiparticle in Dr Hardy's thought experiment because they obey the same quantum-mechanical rules.
极化的光子可以代替哈迪的思想试验中的粒子和反粒子，因为他们遵守同样的量子力学规则。
This first recorded particle is a meson composed of an anti-beauty quark – the beauty quark's antiparticle – and an up quark – one of the two common quarks that make up protons and neutrons.
这次实验，第一次记录下来的是一个介子，它是由一个反美夸克（ 美夸克的反粒子）和一个上夸克（组成质子和中子的普通夸克之一）所组成。
This first recorded particle is a meson composed of an anti-beauty quark – the beauty quark's antiparticle – and an up quark – one of the two common quarks that make up protons and neutrons.
这次实验，第一次记录下来的是一个介子，它是由一个反美夸克（ 美夸克的反粒子）和一个上夸克（组成质子和中子的普通夸克之一）所组成。
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