“elementary particle”的概念、定义、翻译、参考文献-科学参考

elementary particle

Astronomy

A fundamental constituent of matter; also known as a subatomic particle. Elementary particles are divided into two main classes: hadrons, which themselves consist of units called quarks; and leptons, which are not composed of quarks and seem to have no internal structure. Hadrons which consist of three quarks are also known as baryons; examples are the proton and the neutron. Hadrons which consist of two quarks are known as mesons. Leptons include the electron, muon, and neutrino. Elementary particles have properties of charge, spin, and rest mass. They can be classified by the interactions they take part in. Hadrons participate in strong interactions, weak interactions, and, if they carry charge, electromagnetic interactions. Leptons do not participate in strong interactions. About 200 different elementary particles are thought to exist.

Chemistry

One of the fundamental particles of which matter is composed, such as the electron, proton, or neutron.

Chemical Engineering

A fundamental particle from which all matter is composed and includes electrons, neutrons, and protons.

Electronics and Electrical Engineering

Any of the particles of matter that cannot be subdivided into smaller particles. Elementary particles are described by a set of quantum numbers describing their intrinsic properties, such as charge and spin. The stable particles are the electron, proton, photon, and neutrino. The neutron is also stable when bound in an atomic nucleus. The electron is the natural unit of electric charge.
Elementary particles can be classified in groups according to the types of fundamental interaction to which they are subject. These groups include the hadrons (such as the neutron and proton) and the leptons (including the electron and neutrino). Hadrons are believed to have an internal structure and to consist of quarks permanently confined within the hadrons.

单词	elementary particle
释义	elementary particle Astronomy A fundamental constituent of matter; also known as a subatomic particle. Elementary particles are divided into two main classes: hadrons, which themselves consist of units called quarks; and leptons, which are not composed of quarks and seem to have no internal structure. Hadrons which consist of three quarks are also known as baryons; examples are the proton and the neutron. Hadrons which consist of two quarks are known as mesons. Leptons include the electron, muon, and neutrino. Elementary particles have properties of charge, spin, and rest mass. They can be classified by the interactions they take part in. Hadrons participate in strong interactions, weak interactions, and, if they carry charge, electromagnetic interactions. Leptons do not participate in strong interactions. About 200 different elementary particles are thought to exist. Chemistry One of the fundamental particles of which matter is composed, such as the electron, proton, or neutron. Chemical Engineering A fundamental particle from which all matter is composed and includes electrons, neutrons, and protons. Electronics and Electrical Engineering Any of the particles of matter that cannot be subdivided into smaller particles. Elementary particles are described by a set of quantum numbers describing their intrinsic properties, such as charge and spin. The stable particles are the electron, proton, photon, and neutrino. The neutron is also stable when bound in an atomic nucleus. The electron is the natural unit of electric charge. Elementary particles can be classified in groups according to the types of fundamental interaction to which they are subject. These groups include the hadrons (such as the neutron and proton) and the leptons (including the electron and neutrino). Hadrons are believed to have an internal structure and to consist of quarks permanently confined within the hadrons.
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