accretion

英 [əˈkriːʃn]

美 [əˈkriːʃn]

n.  积聚层; 堆积层; 堆积，积聚(过程)

复数：accretions　

GRE化学

BNC.22082 / COCA.17492

牛津词典

noun

• 积聚层；堆积层
  a layer of a substance that is slowly added to sth
• 堆积，积聚（过程）
  the process of new layers being slowly added to sth

柯林斯词典

• N-COUNT 增加物;添加物
  Anaccretionis an addition to something, usually one that has been added over a period of time.
  1. The script has been gathering editorial accretions for years.
     多年来该剧本一直在修改。
• N-UNCOUNT 添加；累积
  Accretionis the process of new layers or parts being added to something so that it increases in size.
  1. A coral reef is built by the accretion of tiny, identical organisms.
     珊瑚礁是由许多相同的微生物不断堆积而成。

英英释义

noun

• (law) an increase in a beneficiary's share in an estate (as when a co-beneficiary dies or fails to meet some condition or rejects the inheritance)
• an increase by natural growth or addition
  Synonym:accumulation
• (geology) an increase in land resulting from alluvial deposits or waterborne sediment
• (biology) growth by addition as by the adhesion of parts or particles
• (astronomy) the formation of a celestial object by the effect of gravity pulling together surrounding objects and gases
• something contributing to growth or increase
  1. he scraped away the accretions of paint
  2. the central city surrounded by recent accretions

双语例句

• In fact, this process of accretion is more efficient at releasing energy than even nuclear processes.
  事实上，这种聚集过程的能量释放比原子能释放过程更加有效。
• It is shown that magnetic fields in the Sun and astrophysical accretion disks are of a spatially intermittent nature.
  太阳和天体物理吸积盘中的磁场是一种空间间歇的磁流。
• It is well known that accretion disks are hydrodynamic disks with anomalous viscosity.
  天体物理吸积盘是具有反常粘滞的流体盘。
• The script has been gathering editorial accretions for years.
  多年来该剧本一直在修改。
• The ice accretion geometric characteristics have complex effects on airfoil aerodynamic coefficients.
  积冰几何形状对翼型气动系数的影响是复杂的。
• The model comprising accretion onto a neutron star or black hole companion must still be considered a favored hypothesis.
  在中子星或黑洞伴星上发生吸积的模型，仍应看成是一个有价值的假说。
• The Mass and Angular Momentum Loss from the Edge of the Accretion disc and the Evolution of Cataclysmic Binaries
  吸积盘边缘的质量和角动量损失与激变双星的演化
• For example, some accretion disks in binary star systems occasionally undergo large, temporary increases in luminosity.
  例如，有些双星系统里的吸积盘，偶尔会短暂地大幅增加亮度。
• A qualitative analysis of erosion and accretion in meandering streams using vortex
  利用涡旋定性分析弯曲河道的剥蚀和增生
• X-ray observations of iron in the accretion disks may actually be showing the effects of such a massive black hole as well.
  同时，铁的X射线对这种吸积现象的观察资料实际上也可以反映这种巨大黑洞的影响。