anal fin中文，anal fin的意思，anal fin翻译及用法

2026-09-23 05:30 浏览次数 26

anal fin

英[ˈeinəl fin]美[ˈenəl fɪn]

[鱼] 臀鳍

anal fin 英语释义

英语释义

    1. a median unpaired fin on the lower posterior part of the body behind the vent and sometimes confluent with the caudal fin — see fish illustration

anal fin 例句

英汉例句

  • Old World freshwater catfishes having naked skin and a long anal fin more or less merged with the eellike caudal fin.

    东半球的淡水鲇鱼，体表无鳞，有类似鳗鱼尾鳍的很长的臀鳍。

  • The tail region, Bordered Below by a long anal fin that the fish undulates to move about, contains the electric organs.

    鳍的下缘有一长形臀鳍，依靠臀鳍的波动而游动。

  • The male shows elongated rays in its anal fin and yellow pearl organs on the jaws and opercula during breeding season.

    雄鱼的臀鳍鳍条特长，交配季节两颌和鳃盖会长出黄色的珠星。

  • In addition, the anal fin has a curvature that fits the round shape.

    还有，尾鳍有一个弯曲度刚好适合鱼的圆型身体。

  • male guppy mating of the anal fin into vehicles.

    雄性食蚊鱼的臀鳍成为交配器等。

  • Similar to G. affinis, the anal fin of male would develop into a gonopodium .

    雄性孔雀鱼与食蚊鱼一样，臀鳍会演化为生殖管。

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