particle

英 [ˈpɑːtɪkl]

美 [ˈpɑːrtɪkl]

n.  颗粒; 微粒; 粒子; 小品词(与动词构成短语动词的副词或介词)

复数：particles　

CET4CET6考研TOEFLIELTSTEM4TEM8化学

Collins.2 / BNC.3155 / COCA.3683

牛津词典

noun

• 颗粒；微粒
  a very small piece of sth
  1. particles of dust
     灰尘
  2. dust particles
     尘埃
  3. There was not a particle of evidence (= no evidence at all) to support the case.
     没有丝毫支持这个论点的证据。
• 粒子
  a very small piece of matter, such as an electron or proton , that is part of an atom
• 小品词（与动词构成短语动词的副词或介词）
  an adverb or a preposition that can combine with a verb to make a phrasal verb
  1. In ‘She tore up the letter’, the word ‘up’ is a particle.
     在She tore up the letter句中，up是小品词。

柯林斯词典

• N-COUNT 微粒；极小量
  Aparticle ofsomething is a very small piece or amount of it.
  1. ...a particle of hot metal...
     热金属微粒
  2. There is a particle of truth in his statement.
     他的陈述中有一点点实话。
  3. ...food particles.
     食物微粒
• 粒子
  In physics, aparticleis a piece of matter smaller than an atom, for example an electron or a proton.
• （语法中的）小品词
  In grammar, aparticleis a preposition such as 'into' or an adverb such as 'out' which can combine with a verb to form a phrasal verb.

英英释义

noun

• a function word that can be used in English to form phrasal verbs
• a body having finite mass and internal structure but negligible dimensions
  Synonym:subatomic particle
• (nontechnical usage) a tiny piece of anything
  Synonym:atommoleculecorpusclemotespeck

双语例句

• There is a particle of truth in his statement.
  他的陈述中有一点点实话。
• A neutron is simply a neutral particle in the nucleus of an atom.
  中子就是原子核里不带电的粒子。
• The game application of the particle systems is studied.
  主要研究了粒子系统在游戏中的应用。
• The treatment of precipitates and the calcination process could affect the particle size distribution and appearance density.
  对沉淀物的处理和烧结过程的控制将会影响到粒子的尺度分布和表观比重。
• This energy uncertainty in turn appears as a variability in the apparent mass of the particle.
  这种能量的不确定范围，又表现为粒子表观质量的可变性。
• Electrons or any other "particle" should display wave properties to preserve the complementary wave-particle symmetry of nature.
  电子及其他任何粒子都应该显示波的性质，才能体现自然界波粒互补的对称性。
• Today many radioisotopes are produced using the particle accelerator called a cyclotron.
  今天许多放射性同位素是用被称为回旋加速器的粒子加速器来制造的。
• Effects of different particle sizes of bamboo flour on mechanical properties of the composites were studied.
  研究了不同粒径竹粉对复合材料力学性能的影响。
• The reasons of premature convergence of Particle Swarm Optimization ( PSO) Algorithm were analyzed.
  分析了粒子群优化（PSO）算法易于发生早熟收敛的原因。
• Based on the light scattering principle, a novel method for particle size analysis is presented in this paper.
  基于光散射原理，提出了一种新的测量颗粒粒径大小及分布的方法。