查询词典 fin

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。

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 absorption and distribution of chromium were studied in ryeusing nutrient culture technique and pot experiment.

采用不同浓度K2CrO4(0，0.4，0.8和1.2 mmol/L)的Hoagland营养液处理黑麦幼苗，测定铬在黑麦体内的亚细胞分布、铬化学形态及不同部位的积累。

By analyzing theory foundation of mathematical morphology in the digital image processing, researching morphology arithmetic of the binary Image, discussing two basic forms for the least structure element: dilation and erosion.

通过分析数学形态学在图像中的理论基础，研究二值图像的形态分析算法，探讨最小结构元素的两种基本形态：膨胀和腐蚀；分析了数学形态学复杂算法的基本原理，把数学形态学的部分并行处理理念引入到家实际应用中。