查询词典 anal fin

Main business categories: sea cucumber, abalone, shark's fin, scallops, prawns, dried shrimps, grilled shrimp, fish slices shredded squid, dried fish, seaweed, sea-ear, Undaria a variety of dry seafood dishes.

主要经营类别：海参、鲍鱼、鱼翅、干贝、大虾、海米、烤虾、烤鱼片、鱿鱼丝、鱼干、紫菜、海木耳、裙带菜等各种干海产品。

Transferred to the Academy as the floor of the diamond-shaped eye-catching show in front of the school badge: it is a petrel flying, Fen-fin to break through the clouds, this school should be a sub-image of bamboo a true portrayal of it!

转视到学苑楼，醒目的菱形校徽呈现在眼前：那是一只翻飞的海燕，奋翅冲破云霄，这应是竹中学子形象的真实写照吧！

Aluminium foil ; roughing foil mill ; finishing foil mill ; fin stock ; pack aging foil ; production

铝箔；铝箔轧机；粗轧机；中轧机；精轧机；空调箔；产量

Numerous unique species have been driven to the brink of extinction in the river, including the white-fin dolphin and Yangtze river sturgeon.

长江许多特有生物面临绝种危机，包括中华白海豚和中华鲟鱼。

Oh! He has a red-purple tongue with slight yellow tongue fur.he has a rough-fin

主任：请给我看一下舌头他有紫红色的舌头薄黄苔，脉细涩。

Knives and scissors grinding have different from other commonly product grinding. It has high grinding quantity, rigid surface, fin texture and so on, so it has the characteristic of one-off mighty grinding.

刀剪磨削不同于普通磨削，其磨削特点有磨削量大、表面硬度高、纹理细密等，属一次性强力磨削。

The geometric features of the body and locomotive characteristic and parameters of the flexible dorsal fin are discussed.

以依靠长背鳍推进的&尼罗河魔鬼&为研究对象，对弓鳍目模式推进进行了研究。

The sub-systems composed of flexible fin ,mechanism,control system,actuator were designed in detail.

单柔性长鳍波动仿生推进器是一种模拟鱼类&尼罗河魔鬼&的长背鳍波动推进方式而设计的新型水下仿生推进装置。

This paper mainly discusses the design and realization of the test model for a bionic underwater vehicle, which is propelled by undulations of a long flexible fin.

以基于柔性长鳍波动推进的仿生水下机器人试验模型为背景，主要研究其设计与实现问题。

Firstly, design principles and architecture of the test model are briefly introduced. Then we focus on the design method, the components and the operational procedure of the bionic long flexible fin, the control and communication module, as well as the motion control subsystem. Finally, some conclusions are drawn from the test data and experimental results of the test model, and the necessities to improvments and further research are also proposed.

首先，介绍了仿生水下机器人试验模型的设计原则及其系统总体结构，然后重点研究了仿生柔性长鳍、主控模块与通讯系统、运动控制子系统的设计方法、系统构成和工作原理，最后介绍了试验模型的系统测试与航行试验结果及其结论，并指出了仿生水下机器人试验模型的改进重点和柔性长鳍波动推进技术今后的研究方向。

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。