查询词典 anal fin

Realization of this test model verifies that propulsion by undulations of a long flexible fin may be effectively applied to the propulsion control system of underwater vehicles from the view of principles and technologies.

基于柔性长鳍波动推进的仿生水下机器人试验模型的研制成功，初步验证了柔性长鳍波动推进方式应用于水下机器人推进控制系统在原理上和技术上是可行的。

Fire-resistance; Finite element analysis; Flexible end plate connections ; Fin plate shear connections; Catenary action

抗火； 有限元分析；内缩式端板连接；柔性剪力板连接；悬链线作用

Numerical simulation of flexible end-plates connections and fin plate shear connections under fire was successfully done using FEM software ANSYS. Geometric, material and contact non-linearity was taken into account.

利用有限元分析软件ANSYS对高温下内缩式端板连接和柔性剪力板连接进行了数值模拟分析，分析中考虑了材料非线性、几何非线性及接触非线性等多种非线性因素的影响。

Flexible fin ; pitching axis ; Strouhal number ; maximal attack angle ; propulsive performance

柔性鳍；纵摇轴；斯特劳哈尔数；最大攻角；推进性能

The thrust coefficients and propulsive efficiency of a two-dimensional flexible fin with heaving and pitching motion were computed using FLUENT. The effect of different locations of the pitching axis on propulsive performance was examined using three deflexion modes which are respectively, modified Bose mode, cantilever beam with uniformly distributed load and cantilever beam with non-uniformly distributed load.

利用FLUENT软件数值计算了二维柔性鳍作升沉纵摇运动时的推力系数及推进效率，探讨了修正Bose变形方程、均匀载荷和非均匀载荷悬臂梁变形方程等三种柔性模式下纵摇轴位置对摆动鳍推进性能的影响，其中纵摇轴在尾缘处能够获得更大的推力，而最高的推进效率分别对应修正Bose模式下纵摇轴距首缘1/3弦长处和悬臂梁柔性变形模型下纵摇轴距首缘2/3弦长处。

He's in Panama City at the Fin Del Camino Hotel.

他说钱还在茶包手上

He's in Panama City at the Fin Del Camino Hotel.

不知道他说钱还在茶包手上

At the Fin Del Camino Hotel.

在鱼翅删除卡米诺酒店。

Minutes later I met her parents and they took me to eat what I thought to be sweet-and-sour soup with rice noodles but turned out to be shark fin with deer tendons 400 RMB ($60 USD) per cup.

大多数美国游客都会觉得在中国消费非常有价值，包括我。

This is the main disadvantage of traditional fin stabilizers.

这是传统减摇鳍的主要缺陷。

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。