| 例句 |
Inside the atom there is a nucleus composed of neutrons and protons. The nucleus is crucial to the making of nuclear weapons.一个原子里面有由中子和质子组成的核，对制造核武器很重要。Each atomic cluster is made up of neutrons and protons.原子簇是由中子和质子构成的。An atom itself is a complete whole, with its electrons, protons and neutrons and other elements.一个原子本身就是一个完整的整体，包括电子、质子、中子及其他元素。Atoms are made up of smaller particles - protons, neutrons and electrons - some of which are made up of even smaller ones, called quarks.原子是由更小的粒子，即质子、中子和电子组成的，其中有些是由更小的叫做夸克的粒子构成的。The proton has positive electrical charge.质子带正电荷。Neutrons and protons are bound together in the nucleus of an atom.中子和质子在原子核内结合在一起。Atoms consist of positively-charged protons, negatively-charged electrons and neutral particles called neutrons.原子由带正电的质子、带负电的电子和称为中子的不带电粒子组成。The nucleus of a deuterium atom contains a proton and a neutron.重氢的原子核由一个质子和一个中子组成。A proton is an elementary particle of matter.质子是物质的基本粒子。At present nobody understands why these three quarks which are in the proton are bound together.目前还没有人知道质子里面的这三个夸克为什么会结合在一起。 |