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单词 nucleation
释义
nucleation
noun[U]
sciencespecialized
uk
/ˌnjuː.klɪˈeɪ.ʃən/us
/ˌnuː.klɪˈeɪ.ʃən/
the firststepin theprocessof asubstancechangingfrom onestateto another:
成核作用；晶核形成
Thissectiondealswith thesimplestnucleationevent,namelythe nucleation ofsolidcrystalsduring thefreezingof apuremetal.本节讨论最简单的成核事件，即纯金属冻结过程中固体晶体的成核。
In thecontextofairpollution, nucleationinitiatestheprocessby whichgasesareconvertedtosmallliquiddroplets.在空气污染方面，成核是气体转化为小液滴的过程。
SMART Vocabulary: related words and phrases
Physical & chemical processes
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  • absorptive
  • absorptive capacity
  • acidification
  • addition reaction
  • condense
  • electrolysis
  • evaporate
  • evaporation
  • excitability
  • excitation
  • excite
  • exergonic
  • oxidize
  • redox
  • refraction
  • rehydrate
  • reliquefy
  • reliquify
  • solidify
See more results »
(Definition ofnucleationfrom theCambridge Advanced Learner's Dictionary & Thesaurus© Cambridge University Press)

Examplesofnucleation

nucleation
These particles were prepared from molecular precursors combined with a surface modification agent either by a photolytic or a thermalnucleationand growth step.
From theCambridge English Corpus
The presence of bulged grains indicates deformation at temperatures lower than those needed for subgrainnucleation.
From theCambridge English Corpus
Nucleationof microtubules from mitotic centrosomes is modulated by a phosphorylated epitope.
From theCambridge English Corpus
We have then nonucleationby the surface energy and a soup of matter.
From theCambridge English Corpus
Therefore, at high strain rates, the strength is determined by both the interatomic forces and by growth andnucleationof cavities.
From theCambridge English Corpus
Apparently, subtle variations in experimental conditions, such as the presence or absence of gentle agitation, can favor onenucleationevent over others.
From theCambridge English Corpus
It should be pointed out that the mechanism of fragmentation is closely related to anucleationphenomenon.
From theCambridge English Corpus
Such events can be handled by splitting the time interval into several parts (defined by time intervals between twonucleationor impingement events).
From theCambridge English Corpus
In this way, thenucleationprocedure we follow goes through a natural temporal and thermal evolution.
From theCambridge English Corpus
While it is possible that the coalified surfaces acted asnucleationsites, the possibility that the spheres are organosilicates cannot be discounted.
From theCambridge English Corpus
The capsule of host tissue surrounding them did not provide any barrier to icenucleation.
From theCambridge English Corpus
Herenucleationis the opposite of interface disappearance.
From theCambridge English Corpus
However, little information is available on the microtubulenucleationability of centrosomes of either male or female origin in maturing or pre-activated porcine oocytes.
From theCambridge English Corpus
We assume that the volume fraction of crystals upon bubblenucleationis sufficiently high that the bubbles are prevented from subsequent buoyant motion.
From theCambridge English Corpus
It is an up-to-date and comprehensive compilation of all aspects of igneous petrology, ranging from thenucleationand growth of crystals to magma genesis.
From theCambridge English Corpus
These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
#https://dictionary.cambridge.org//dictionary/english/nucleation##
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更新时间：2024/12/27 22:03:50