查询词典 anal fin

You will never get to see photos like this. In the first photo, there is a gaping hole in the fuselage through which you can see the tailplane and vertical fin of the aircraft.

这样看来，生存论的死这一概念之为被抛向最本己的、无所关联的、不可逾越的能在的存在这种情况就变得清清楚楚了。

Short boom for tailplane with elevators and central fin and toed-in tip fins carrying rudders.

为电梯和中央鳍和机尾趾短臂在尖鳍舵进行。

To clear this propeller the rotor pylon was raised above the cabin and the tail unit was redesigned as a twin-boom assembly, that of the V3 carrying two end-plate oval fins and rudders while that of the V4 had a single fin and rudder mounted on the tailplane centre.

要清除这个重新设计的尾部螺旋桨转子螺旋杆菌是上文提到的船舱和单位被视为双繁荣集会，方向舵和V3的是携带的两个端板椭圆鳍而 V4，该有一个尾翼和方向舵安装在机尾的中心。

T was later transiently expressed in pharyngeal arches, and in pectoral fin buds. IGFBP-3 mRNA is predominantly and persistently expressed in the developing otic vesicle. IGFBP-3 is also expressed in optic stalk, retina, pineal gland, tegmentum in midbrain, anterior pituitary and midline floor of hypothalamus.

GFBP-3 mRNA 持续而强烈地表达在发育中的内耳，它也表达在眼睛的视杆和部分视网膜细胞，松果腺以及脑垂体前部、中脑脑盖和下丘脑的基底中央等脑组织。

After an hour or two, a triangular fin sliced the surface of the water and circled the group.

一两个小时后，一团三角形的鱼鳞片在水面上盘旋聚集。

It is an important test platform supporting the study of underwater vehicle based on undulatory propulsion of long flexible Fin.

是支撑柔性长鳍波动推进水下机器人研究的重要试验平台。

A simplified kinematic model on locomotion of the undulatory long dorsal fin propulsion is based on the the observation and experimental data.

在"尼罗河魔鬼"巡航游动试验的基础上，通过对鱼体几何形态和柔性长背鳍波动的运动学分析，建立了"尼罗河魔鬼"长背鳍波动推进的简化运动学模型，并利用大摆幅伸长体理论分析了长背鳍波动推进的水动力学特性。

With the test model of underwater vehicle based on undulatory propulsion of long flexible fin as background, the paper mainly studied how to construct the test system which can satisfy the static and dynamic hydrodynamic force and moment measurement requirements of diversified test models of underwater vehicle fixed at arbitrary attitude.

以基于仿生柔性长鳍波动推进的水下机器人试验模型为背景，主要研究如何构建满足多种水下机器人试验模型在各种姿态下流体动力／力矩的静态与动态测量要求的测试系统。

Unpaired median fin on the backs of fishes and some other aquatic vertebrates that help to maintain balance.

鱼类和其他水生脊椎动物背部帮助保持平衡的奇鳍。

In this April 3, 2009 photo, a robotic tail fin, whose actions are dictated by microprocessors housed in an attached Tupperware container, is seen in professor John Long's Vassar College science lab in Poughkeepsie, NY Long is among a small group of researchers worldwide building robots that can do things like shimmy through water or slither up shores to aid the study biology and evolution.

在这09年4月3日的照片，机器人尾翼，其行动是由微处理器，住在一个重视特百惠容器，是在教授约翰龙的瓦莎学院科学实验室在北京市东城区龙是一小群世界各地的研究人员建设机器人可以做的事情一样摆通过水或滑行了海岸援助和进化生物学研究。

Nowadays, most of research are to build a transmutative Petri Nets through adding controlling place sets, controlling arc sets and controlling policy to the basic Petri Nets, while the Controlled Petri Nets could be used to argue many controlling theory problems conveniently and to induce many logically and physically supervisory and solve the Event Feedback Controlling Problems and State Feedback Controlling Problem in DEDS supervisory theory.

目前大多数的研究表现为在变形后的受控Petri网基础上，利用各种方法求得各种逻辑型、结构型控制器，解决DEDS监控理论中的事件反馈控制问题与状态反馈控制问题。

On one hand, there are discussions with the works council and union about extension of short time working up to the end of September.

一方面，有讨论，工程理事会和联盟关于延长工作时间短至9月底。