查询词典 anal fin

A silvery blue fish of Atlantic waters, having leathery skin, yellow fins, and five spines on the anal fin.

鳞魨一种生活在大西洋中的银蓝色鱼类，长有革质皮肤和黄色的鳍，尾鳍上有五根脊刺

A silvery blue fishof Atlantic waters,having leathery skin,yellow fins,and five spines on the anal fin.

鳞？一种生活在大西洋中的银蓝色鱼类，长有革质皮肤和黄色的鳍，尾鳍上有五根脊刺

Mature females, in acidic water, compared with male, body color than black, chest, pelvic, anal fin deep red abdomen clearly visible outline of the ovary, and anus highlighted clearly the outer edge of the cloaca, which is crowded as a result of ovarian the result of pressure.

成熟的雌鱼，在酸性水中，与雄鱼比较，体色较黑，胸部、腹鳍、臀鳍的红色较深，腹部可见明显的卵巢轮廓，而且肛门明显突出于泄殖腔外缘，这是由于卵巢挤压的结果。

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。

Among the largest bony fish; pelagic fish having an oval compressed body with high dorsal and anal fins and caudal fin reduced to a rudder-like lobe; worldwide in warm waters.

大型的多骨鱼；远洋鱼，椭圆体形，背鳍和尾鳍高，尾鳍退化为似舵的突出物；遍布世界各地的温暖水域。

Generally, the figure of the one in the cave is smaller, the growing speed is very slow and the season growing is not obvious, mainly because of lack of food and the low temperature (around 15℃) in the karst cave water. In the numerable characters, the anal fin, scale of encircle tail and gill raker of the one in the cave are in the tendency of increasing so as to adapt to the narrow water passage in the karst cave, while the length of the cave Cyprinus carpio is lengthening comparing with the one on the surface.

结果表明：从总体看洞穴鲤鱼的体形比地表鲤鱼小，生长速度缓慢，季节生长不明显，主要影响因子是洞穴内食物贫乏和水温较低（15℃左右）；在可数性状中，洞穴鲤鱼的臀鳍条、围尾柄鳞和鳃耙有增多趋势，即增加了感觉细胞的附着基底；为适应洞穴水流域的狭窄通道，洞穴鲤鱼的体长相对地表鲤鱼而言有延长现象。

These guys look great even when not flaring, and when they do flare the effect is astounding; a huge tail that spreads straight up and straight down, full dorsal, and symmetrical anal fin.

即使半月斗鱼相貌一般还是很吸引人的目光，如果它身型华丽耀眼，绝对会令人过目难忘的。

A gonopodium is a modified, tubular anal fin used to fertilize the females.

孔雀鱼是卵胎生的，不是卵生的，而且母鱼体长大约是公鱼的2倍大，母鱼的体色通常是较淡且带有些灰色色彩或许母鱼尾部也会有一点点的色彩，至於公鱼则是全身都有鲜艳色彩，公鱼的尾巴比母鱼尾巴长，并且除ㄌ一般的尾鳍外，还有一段交尾器，交尾器用来使母鱼受孕的

Any of a large group of fishes of the superorder Acanthopterygii,having bony skeletons and spiny rays in the dorsal and anal fin s and including the bass,perch,mackerel,and swordfish.

棘鳍目鱼棘鳍鱼总目的各种鱼类，有骨质的外骨骼和刺状的背鳍骨以及近肛门的鳍。还包括鲈鱼，鲭鱼，和箭鱼

The tail region, border ed 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 work of this paper is as follows: 1. Looking back the progressing history of the linear motor, introducing the features of the elevator driven by linear induction motor, radicating the topic of this paper "the digital frequency variable control of the elevator bi-side direct driven by linear induction motor". The research of this paper covers the conventional VVVF control, space vector based VVVF control, vector control and DTC.

本文主要开展了以下几个方面的工作： 1 回顾了直线电机发展历史，电机的驱动技术演变，特别是针对直线电机的驱动，简要介绍了直线感应电机驱动电梯的优点和不同结构类型，对传统的v／f控制，基于空间矢量法的v／f控制，矢量控制，和基于电压空间矢量的直接转矩控制进行了比较，确立了本课题的研究主题：直线感应电机双边直推式驱动电梯的全数字变频控制。

The article combines with the treatment of a superficial civil air defense work to introduce how the grouting method to improve the performance of the backfill soil.

文章从治理漂浮人防工事的角度提出了注浆技术在改善回填土性质方面的应用，并详细阐述了注浆技术的施工流程。