粒子

This sister particle is usually called an antiparticle.

姐妹粒子通常称为反粒子。

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。

Matter and antimatter are perfect opposites; for each of the basic particles of matter, there exists an antiparticle, in which properties such as the electric charge are reversed.

物质和反物质是理想的对立事物；对于每一种基本物质粒子而言，存在一种反粒子，它具有象电荷颠倒那样的特性。

Anderson (1905-1991)—the antiparticle of the electron—in the fall of 1932, when people gradually realized that a new milestone in physics had been reached.

Anderson ， 1905 - 1991）发现了电子的反粒子以后，大家才渐渐认识到反粒子理论又是物理学的另一个里程碑。

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.

分化后的光子能够用来代替Hardy的思维试验中的粒子和反粒子，因为它们遵循了和量子力学中相同的规律。

When a particle meets its antiparticle, they destroy each other, releasing a burst of energy such as gamma rays.

当一个粒子和一个自身的反粒子相撞时都会把对方摧毁，同时爆发出例如伽马射线这样的能量。

Vacuum fluctuations are always created as particle/antiparticle pairs.

真空涨落一直产生粒子和反粒子对。

You've heard the controversy. Particle physicists predict the world's new highest-energy atom smasher, the Large Hadron Collider near Geneva, Switzerland, might create tiny black holes, which they say would be a fantastic discovery. Some doomsayers fear those black holes might gobble up Earth--physicist say that's impossible--and have petitioned the United Nations to stop the $5.5 billion LHC .

你可能听说过这场争论：粒子物理学家们预测，世界上最高能量的新型核粒子加速器——位于瑞士日内瓦附近的大型强子对撞机，可能会创造出微型黑洞，他们称这将是一个奇妙的发现；一些灾难预言者担心，这些黑洞可能会吞没地球，尽管物理学家们说这是不可能的，但他们还是请求联合国停止这个55亿美元的LHC项目。

You've heard the controversy. Particle physicists predict the world's new highest-energy atom smasher the Large Hadron Collider near Geneva Switzerland might create tiny black holes which they say would be a fantastic discovery. Some doomsayers fear those black holes might gobble up Earth--physicist say that's impossible--and have petitioned the United Nations to stop the $5.5 billion LHC .

你可能听说过这场争论：粒子物理学家们预测，世界上最高能量地新型核粒子加速器——位于瑞士日内瓦附近地大型强子对撞机，可能会创造出微型黑洞，他们称这将是一个奇妙地发现；一些灾难预言者担心，这些黑洞可能会吞没地球，尽管物理学家们说这是不可能地，但他们还是哀求联合国进行这个55亿美元地 LHC 项目。

The diameter of nano-particle is small and its surface energy is high. Atomic valence bond of particle surface is not saturation and surface atoms have extremely physical and chemical activity. So, nano-particle is apt to agglomerate to make difficult to bring its excellent properties to completely play and to modify polymer.

纳米粒子粒径小，表面能大，且粒子表面的原子价健处于不饱和状态，表面原子有极大的物理与化学活性，因此纳米粒子非常易于团聚和吸附，而使得其拥有的性能难以充分发挥，从而失去应有的对高分子材料的改性作用。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。