查询词典 neutrons

A self-sustaining nuclear reaction; a series of nuclear fissions in which neutrons released by splitting one atom leads to the splitting of others.

一种自我维持的核反应；一个原子分裂后释放的中子引起其他原子分裂的一系列核裂变过程。

The reactor core consisted of pellets ofuranium fuel inside bricks made of graphite, which served as a "moderator",reducing the speed of the neutrons in order to maximise their ability to causefurther fissions.

反应堆的核心包括：含有球状铀燃料的石墨砖，起到&调节器&的作用，可以减少中子的速度以最大化它们引发进一步裂变的能力。

Physics the interaction that binds protons and neutrons together in the nuclei of atoms; mediated by gluons.

使质子和中子在原子核中结合的基本粒子间的相互作用；以胶子作为媒介。

Science attempts to describe and account for the properties of molecules and atoms and their constituents—electrons, protons, neutrons, and other more esoteric particles such as quarks and gluons

科学试图描述和说明分子和原子的特性，以及它们的成分：电子，质子，中子和其它更鲜为人知的粒子如夸克和胶子等。

The Standard Model lets us calculate that nearly all the mass of protons and neutrons is from the kinetic energy of their constituent quarks and gluons (the remainder is from the quarks' rest mass).

从标准模型可以得知，质子与中子的质量几乎皆来自夸克与胶子的动能（其馀的质量则来自夸克的静止质量）。

There are fields for quarks of various types, some of which are bound together in the protons and neutrons that make up the nuclei of ordinary atoms.

也有一些相对于各种夸克的场，其中的一些结合成质子和中子（就是组成原子核的那些东西）。

It consists of positively charged protons and neutral neutrons, known collectively as nucleons, held together by the strong force.

由带正电的质子和不带电的中子组成，这两者总称为核子，由强核力使其结合。

As a result of a However, as a result of nuclear reactions (which might be caused by the bombardment of atoms by protons, neutrons or other light particles), nuclei can be produced in an excited or unstable condition in which one or a number of nucleons are raised to an excited state.

运 行过程中，二氧化铀芯块需要承受结构变化，主要是由于高的运行温度和高温度梯度造成的，同时也是长期受到辐照的结果。

Positive protons, neutrons and negatrons strike a balance in forming a neutral atom.

在原子内部，带正电的质子、不带电的中子和带负电的电子，三者平衡形成一个不带电的平衡体——原子。

Since the atoms that make up normal,"solid" matter are mostly empty space, a star made almost entirely of tightly packed neutrons is extraordinarily dense: a fingernail's worth of a neutron star would have a mass of more than a trillion kilograms. A neutron star's density and gravity is second only to a black hole.

确切的说，是直径20km左右的一个超级中子，虽然不过只有一个大中型城市的体积，质量超过1.5倍太阳——译注）由原子组成的普通物质，其&实心&的物质内部其实绝大部分都是空的（大家完全可以用太阳系质量集中在太阳来想象原子内部，当然电子与行星有本质区别——译注），而一颗几乎全部由中子构成的恒星却密度极大：指甲大的一块中子星物质的质量达到万亿吨级，中子星的密度、引力仅次于黑洞。

They experience feelings deeply and intensely, and their emotions are often mercurial.

他们的感情深刻而强烈，情绪善变。

Surrounded with or as if with a rampart.

用城墙围绕的用城墙围绕的或类似于为城墙围绕的