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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
      1. 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.
        1. (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
            1. a body having finite mass and internal structure but negligible dimensions
                Synonym:subatomic particle
              1. (nontechnical usage) a tiny piece of anything
                  Synonym:atommoleculecorpusclemotespeck

                双语例句

                • The shape coefficient and friction coefficient are used to reflect the characteristics of particle outline and surface roughness respectively.
                  用形状系数与粒间摩擦因数分别反映颗粒的外轮廓特征和表面粗糙度。
                • In this paper, a modified particle swarm optimization method is proposed.
                  提出了改进的粒子群优化算法。
                • Astronomers have suspected for more than a decade that supernova shock waves can act like giant particle accelerators.
                  十多年以来,天文学家们一直在猜想,超新星激波可以充当巨型粒子加速器。
                • The emissivity of condensed-phase product particles was corrected by using impact factor of particle size.
                  利用粒径影响因子对闪光剂燃烧产物中凝聚相粒子的发射率进行了修正。
                • There is a particle of truth in his statement.
                  他的陈述中有一点点实话。
                • On entry into a cell, the virus particle uncoats.
                  进入细胞后,病毒颗粒就打开它的外壳。
                • Particle size distribution, microstructure and constitutes of MSWI fly ash were analyzed.
                  分析了生活垃圾焚烧飞灰的粒径、微观形貌及组成。
                • This particle has a very small mass.
                  这种粒子的质量很小。
                • As in the particle in a box, it is the boundary conditions that force us to quantize the energy.
                  像在箱中粒子那样,边界条件迫使我们使能量量子化。
                • In physics the concept of a noninteracting particle does not exist.
                  在物理学的概念里,没有不发生相互作用的粒子。