查询词典 fin-shaped

In this design, according to the principle of crank-rocker, a special four-bar linkage swaying mechanism combined with the flexible tail fin is adopted to guarantee the stable swimming of robofish. The skillful application of hall position sensors achieves the detection of critical position of the swing link, which makes it possible to detect the position of the tail fin and control the turning of robofish. For effective raising and lowering, a mechanism using a cylinder as a pump to imitate the swimming bladder is developed.

在该方案中，应用曲柄摇杆原理，采用了特殊的四连杆摆动机构，结合柔性尾部实现了机器鱼的摆动式推进；巧妙应用了霍尔位置传感器，检测摆杆临界位置，实现了鱼尾位置判断，进而控制鱼尾来转向；研制了以气缸为压缩泵的气路沉浮机构作为&鱼鳔&，能使机器鱼进行沉浮动作。

Theoretical analysis and experimental results show that in shaping of copper fin, when the depth of cut is less than 2 mm, the feed is ranged from 0.5 to 3 mm, and side cutting edge angle is ranged from 20° to 50°, fin with height from 1.5 to 3 mm and thickness from 0.3 to 1.8 mm can be steadily formed.

理论和实验研究表明：在紫铜材料的成形中，切削深度小于2 mm、进给量0.5~3 mm、刀具主偏角20°~50°范围内，可以稳定地形成翅高1.5~3.0 mm、翅厚0.3~1.8 mm的翅片。

He had seen the second fin now coming up behind the first and had identified them as shovel-nosed sharks by the brown, triangular fin and the sweeping movements of the tail.

他看见另一个鳍在第一个的①背后冒出水来，根据这褐色的三角形鳍和甩来甩去的尾巴，认出它们正是铲鼻鲨。

He had seen the second fin now coming up behind the fish and had identified them as shovel-nosed sharks by the brown, triangular fin and the sweeping movements of the tail.

他看见另一个鳍在第一个的背后冒出水来，根据这褐色的三角形鳍和甩来甩去的尾巴，认出它们正是铲鼻鲨。

To create the holes in the fin, add a circle by clicking the Create Circle Path button. Select the circle by double clicking the path and scale it down to fit within the upper left side of the fin.

为了创建这个尾鳍片上的几个洞，通过单击&创建圆圈按钮&加一个圈，双击选中这个圈的路径，缩放它到相对于尾鳍片大小合适。

Even a small scratch or a local sheet metal parts were injured, the traditional practice of baking sheet to be re-done the entire fin is h, to avoid the so-called chromatic aberration, but th is way, the original car's high-temperature paint will lose its significance, But in the construction of a new pump with d is abilities spectrum operations, do not have to worry about paint fin is h color, but only to repair damage to local area, and will not damage surrounding paint, but also will become the old and new exte rio r color is the perfect combination of the same.

即使是一个小刮痕或是局部钣件受伤，传统的钣烤的做法都要重新做过整个漆面，避免出现所谓色差问题，但是如此一来，原车的高温漆面就失去意义，但是在全新的搏士光谱施工作业中，根本不用担心漆色色差，而且只针对受损局部区域修补，并不会破坏周边漆面，又能将新旧漆色变成一致的完美结合。

Even a small scratch or a local sheet me tal parts were injured, the traditional practice of baking sheet to be re-done the entire fin is h, to avoid the so-called chromatic aberration, but th is way, the or ig inal car's h ig h-temperature paint will lose its s ig nificance, But in the construction of a new pump with d is abilities spectrum operations, do not have to worry about paint fin is h color, but only to repair damage to local area, and will not damage surrounding paint, but also will beco me the old and new exte rio r color is the perfect combination of the sa me .

即使是一个小刮痕或是局部钣件受伤，传统的钣烤的做法都要重新做过整个漆面，避免出现所谓色差问题，但是如此一来，原车的高温漆面就失去意义，但是在全新的搏士光谱施工作业中，根本不用担心漆色色差，而且只针对受损局部区域修补，并不会破坏周边漆面，又能将新旧漆色变成一致的完美结合。

D. When the ratio of louver pitch to fin pitch is LP/FP=1.25, the integral performance of the louvered fin radiator is favourable.

分析百叶窗间距和翅片间距的比值对气侧传热和流动性能的影响，当百叶窗角度为27°，LP/FP=1.25 时，具有较好的综合性能； e。

Including the horizontal stabilizer fin and the vertical fin.

尾翼包括水平尾翼和垂直尾翼。

It is believable that this model will be useful for the design of caudal fin machine of robot dolphin,and it's also provide a theoretical foundation for dynamics study of caudal fin of dolphin.

该模型可用于定性描述运动参数对海豚推进性能的影响，为进一步研究豚尾动力学提供了理论基础，同时也为机器海豚尾鳍的控制设计提供了理论依据。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。