英:[ˈpɑːtɪkl]
美:[ˈpɑːrtɪkl]
英:[ˈpɑːtɪkl]
美:[ˈpɑːrtɪkl]
par·ti·cle
par tih kl
复数:particles
noun
a minute quantity or fragment
a relatively small or the smallest discrete portion or amount of something
archaic a clause or article of a composition or document
any of the basic units of matter and energy (such as a molecule, atom, proton, electron, or photon)
a unit of speech expressing some general aspect of meaning or some connective or limiting relation and including the articles, most prepositions and conjunctions, and some interjections and adverbs
the particle up has a perfective meaning in phrases such as beat up and cut up
a small eucharistic wafer distributed to a Roman Catholic layman at Communion
particle size粒度;颗粒大小
particle size distribution粒度分布
particle diameter粒径;颗粒直径,粒子直径
fine particle细粒;微粒
magnetic particle磁粉;磁粒子,磁秽
solid particle固体微粒;实体颗粒
particle physics粒子物理学
particle velocity粒子速度;质点(振动)速度
particle board刨花板,碎料板
charged particle带电粒子
particle size analyzer粒度分析仪,粒度分析器;颗粒大小分析仪
particle counter粒子计数器;粒子计数管;颗粒测量计数器
dust particle尘粒;微尘
average particle size平均粒度
particle dynamics质点动力学
particle size analysis粒度分析
elementary particle基本粒子;元质点
particle density粒子密度
spherical particle球形颗粒
suspended particle悬浮颗粒;悬浮粒子;浮游质点
这组词都有“粒,微粒”的意思,其区别是:
particle指任何物质的微粒,引申指任何小的部分。
atom指元素的最小粒子,其体积比molecule小。
grain通常指能为肉眼清楚看到的颗粒,比上述几个词所表“粒”的体积大。
speck一般指“微点”或“微粒”,可引申指“斑点、污点”。
molecule指物质中保持原物质的一切化学性质,能独立存在的最小微粒,即分子。
以上来源于网络
14世纪后期,“一点或碎片,整体的小部分或部分微小的物质”,源自拉丁语 particula “一点或部分,谷粒,一点”,是 pars(属格为 partis)的小词,“一部分,一块,一个部分”(来自 PIE 词根 *pere- (2)“授予,分配”)。在语法中,“被认为是次要部分或在对句子的构成中扮演从属角色的词类”(1530年代)。1969年,与亚原子粒子有关的 Particle physics 得到了证实。在建筑方面, particle board(1957年)因其由木屑和刨花制成而被称为如此。
颗粒
粒子,微粒,质点
颗粒
用一般分离方法不容易再分的构成粉末体的单体。
碎料
粒子
Middle English, from Latin particula, from diminutive of part-, pars
The first known use of particle was in the 14th century
particlenoun
one of the very small parts of matter (as a molecule, atom, or electron)
a very small quantity or piece
the smallest possible portion
particleboardnoun
a board made of very small pieces of wood stuck together
particlenoun
one of the very small parts of matter (as a molecule, atom, or electron)
a very small quantity or piece
the smallest possible portion
particlenoun
one of the minute subdivisions of matter (as an atom or molecule)also: elementary particle
a minute quantity or fragment
1 High above the visible cloud deck, at about 70 kilometers altitude, there is a continuous haze of small particles.
2 The experiment showed that most of the alpha particles passed through the foil with very slight deflection or none at all.
3 Some people think there are particles called tachyons, which can travel faster than the speed of light.
4 These particles speed out from the sun, and would go right on through the walls of a spacecraft and through the bodies of the astronauts.
5 The study of wearing rules and mechanical fault diagnoses is based on wear particle analysis.
磨损规律和机械故障诊断等研究都离不开磨粒分析技术.
6 These particles do not contain protons or neutrons found in atoms.
这些粒子不含原子中的质子和中子.
7 The answer, quantum theory tells us, is that the particles do not come from within the black hole, but from the “empty” space just outside the black hole’s event horizon!
8 The ethos of atomic physics—the relentless drive to find irreducible particles, universal mechanisms, and systematic explanations—would soon permeate biology and drive the discipline toward new methods and new questions.
9 I look around, taking in the sofas stacked with wilted cushions, the creaky hardwood floors, the dust particles swirling in the sunlight.
10 I assume he means his shoulder as I race toward him, but then he stands up, and I’m looking at a Ben-high crack in the particle- board.
11 Motion, according to the atomists, was the movement of these little particles.
12 Again, the photons that are exchanged are virtual particles.
13 There is a particle of truth in his statement.
他的陈述中有一点点实话。
14 The answer is that, in quantum theory, particles can be created out of energy in the form of particle/antiparticle pairs.
15 Her palm was open, and there, resting inches above it, was a small cluster of particles.
16 The seven mysterious proteins that, assembled together, make up the Ebola-virus particle, work as a relentless machine, a molecular shark, and they consume the body as the virus makes copies of itself.
17 Merle Tuve, who was still struggling to produce high-energy particles with his obstreperous Tesla coil, saw little practical application for Lawrence’s curved variation on a linear accelerator.
18 He sat desponding on the threshold of the door and gazed bleakly over the dried and hardened fields from which every particle of anything which could be called food or fuel had been plucked.
19 Neutrinos are extremely light particles that have weak interactions but not electromagnetic interactions.
微中子是非常轻的微粒,它有不同于电磁力的弱相互作用力.
20 As they expanded and the matter particles got farther apart, one would be left with an expanding universe that contained hardly any particles and was still in the supercooled state.
2 质点
4 词缀
5 虚词
6 语助词
7 微粒
atomic particulate homogenized corpuscular molecule atom speck granule fleck mote grain corpuscle scintilla particulates corpuscule pearl atomy fine-grained fine-grain f.g. thinnings
8 微少
10 字尾
11 微量
drop shadow shade grain trace atom shred tad glimmer sprinkling scruple bagatelle driblet stiver touch suggestion hint ghost pinch tinge dram indivisible scintilla drib dreg glim kenning dump ace suspicion whisper tot umbrage tittle twopenny stime a ghost of
12 不变词
13 极少量
14 粒子
X particle alpha particle W particle Z particle gamma particle beta particle particulate speck corpuscule corpuscle dust
15 极小量
16 小片
scrap smithereens odd-come-short bit chip tablet pearl rag snip speck fleck morsel fritter thrum gobbet ort morceau scutellum skerrick sippet
19 款