dorsal fin

dorsal fin的基本解释

n.

[动物]背鳍

与dorsal fin相关的网络例句 [注：此内容来源于网络，仅供参考]

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。

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。

The Vietnamese material is dearly distinguished from the examined holotype (AMNH 8365)and paratypes (AMNH 10316, 10307) of Schistura fasciolata by the pelvic-fin origin situated below unbranched or first branched dorsal-fin ray (vs. pelvic-fin origin dearly in front of dorsal-fin origin in S.fasciolata).

越南采集的标本和横纹南鳅的模式标本（AMNH 8365）和副模式标本（AMNH 10316， 10307）有明显的差别，腹鳍起点位于不分支鳍条或第一分背鳍枝鳍的下方（vs S.fasciolata的腹鳍起点明显在背鳍起点的前方）。

与dorsal fin相关的网络解释 [注：此内容来源于网络，仅供参考]

dorsal fin：背鳍

有1背鳍(dorsal fin)和尾鳍(caudal fin)及身体腹面的臀鳍(preanal fin),口须中有类似软骨的支持物(骨骼的前体). 排泄系统:没有集中的肾脏,位于咽壁背方两侧的数十对按体节排列的肾管是文昌鱼的排泄器官. 每一肾管(nephridium)是一个短而弯曲的小管,

dorsal fin：空气垂直舵稳定器

dormitory 宿舍 | dorsal fin 空气垂直舵;稳定器 | dorsal fin 空气垂直舵稳定器

dorsal fin：背

dorsal 背面的 | dorsal fin 背 | dorsum 背部

dorsal fin：背鳍;脊鳍

door chain 网板铁链 | dorsal fin 背鳍;脊鳍 | double acting compressor 复动式压缩机

dorsal fin spine：背 鳍 椎 刺

5)背 鳍 dorsal fin | 6)背 鳍 椎 刺 dorsal fin spine | 7)侧 线 沟 lateral-line canal