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

• 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。
• 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。
• 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
• 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。
• Accretion Disk and Angular Momentum Loss During Formation of a Star in the Nebular Disk
  吸积盘与恒星在星云盘中形成时的角动量损失
• And astronomers, in fact, have seen evidence of spiral-wave patterns in accretion disks in some binary systems.
  事实上天文学家已在一些双星系统的吸积盘中，看见螺旋波图样的证据。
• Infalling gas may first collide not only with itself but with an accretion disk of swirling material surrounding the black hole.
  正在下落的气体不但会先和自身发生碰撞，还会和黑洞周围盘旋着的物质吸积盘相互碰撞。
• Both halftone dot accretion and relative contrast are the important parameters of printing quality control system based on density.
  网点增大和相对反差是基于密度的印刷质量控制体系中两个重要的控制参数。
• Analysis Methods and Its Development about Effect of Ice Accretion on Aircraft Flight Dynamics Characteristics
  结冰对飞机动力学特性影响的分析方法及其进展
• Volume change of mass, accretion state and haemorrhagia amount during the operation were analyzed.
  观察动脉灌注化疗栓塞前后肿块的大小变化、术中肿块粘连状况及出血量的多少。