anal fin
- anal fin的基本解释
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n.
[动]臀鳍
- 相似词
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The measurements used are fork length, head length, upper jaw length, snout length, length of dorsal fin base and anal fin base and the distances from the tip of snout to insertion of dorsal fin, to pectoral fin, to ventral fin and to hard margin of preopercle.
此所用於分析之外部非体节形质计有:尾叉长、头长、上颚长、吻长、眼径、背鳍基底长、臀鳍基底长以及吻端到前鳃盖骨后绿、背鳍起点、腹鳍起点、臀鳍起点等11个形质。
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Moreover, as the heat flux approach to CHF, numerous vapor mushrooms periodically extruded from the perimeter of fin array are observed. This mechanism will cause the dry-out situation in the central part of fin array. The closer fin spacing and longer fin length can provide larger heat transfer. However, the results also demonstrate that early decay on overall heat transfer coefficient as the fin spacing is closer or fin length is longer.
此外,间距0.5mm且高度4mm的鳍片阵列,其热传系数并不随热通量的升高而增加,在中高热通量区,其热传系数保持在一固定值,而其它低深宽比的鳍片阵列,热传系数则是随著热通量升高而增加,到了高热通量区,热传系数会有一最大值,之后会随热通量增加而递减。
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The mechanisms of feces control is followed:(1)Perception of oncotic pressure by anal activates the kinetic response of defecation control;(2)The tension of the internal sphincter muscle of anus makes it closed inmost of the time.(3)Tension of anal sphincter and puborectalis mantain the angle between rectum and anal canal and make anal canal closed during the relaxation of anal sphincter ;(4)adaptability of rectum makes rectum engorge in the cases of the not too high pressure of rectum .Destruction of any mechanism above will result in fecal incontinence .
正常人的大便节制主要通过下列机制调控:(1)直肠对膨胀压的感知,激发控制排便节制的动力学反应;(2)肛门内括约肌的张力,使肛管在大部分时间处于关闭状态;(3)肛门外括约肌和耻骨直肠肌的张力,使得在肛门内括约肌松弛期间,维持肛管直肠角的存在,并使肛管处于闭锁状态;(4)直肠适应性,使得在直肠内压不致过高情况下,允许直肠充盈,上述机制中一种或几种受到破坏,就可以引起大便失禁。
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anal fin:臀鳍
另一类鳍是不成对的,位于身体的纵轴上,叫做奇鳍(medi-an fin),分成背鳍(dorsal fin)、臀鳍(anal fin)和尾鳍(caudal fin). 背鳍和臀鳍的基本功能除维持身体平衡、防止倾斜摇摆外,还可帮助游泳. 尾鳍有平衡、推进和转向的作用
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anal fin:臀
anal 肛门的 | anal fin 臀 | anal gland 肛腺
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anal fin:臀鰭動物水產
63334臀線人類人體各部ductles | 63335臀鰭動物水產anal fin | 63337膿血醫藥手術purulent matter
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Anal fin ray:臀鳍条
背鳍条Dorsal fin ray 3 , 7 3 , 7 - 8 3 , 8 - 9 3 , 7 - 8 3 , ... | 臀鳍条Anal fin ray 3 , 5 3 , 5 3 , 7 2 , 6 1 , 7 3 , 5 3 , 5 | 胸鳍条Pectoral fin ray 1 , 10 - 11 1 , 11 1 , 10 - 11 1 , 10 - 12 2 , 6...
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terminal spot stripes of the anal fin:臀鳍纹
12、尾纹:spotted design on the caudal fin | 14、臀鳍纹:terminal spot stripes of the anal fin | 15、侧齿齦:bars