查询词典 pectoral fin

Of,relating to,or being the marine teleost fishes of the order Pediculati,characterized by pectoral fin s extending from an armlike process and a dorsal fin ray that serves as a lure for prey.

柄鳍目鱼的属于、有关或是柄鳍目硬骨海鱼的，以从臂状突起延伸而成的腹鳍为特征且其背鳍骨可作捕杀猎物的诱饵之用

A winglike organ or structure used for flying ,as the folds of skin of a flying squirrel or the enlarged pectoral fin of a flying fish.

翼状器官用于飞行的象翼一样的器官或结构。如美洲飞鼠皮上的皱褶及文鳐鱼扩大了的胸鳍

Squirrel'.'' or the enlarged pectoral fin of a flying fish.

皮'。''上的皱褶及文鳐鱼扩大了的胸鳍

Swimming upright body, dorsal fin and pectoral fin swinging, swimming forward.

游泳时直立身体，摆动背鳍和胸鳍，游泳前进。

Pectoral fin of up to the end of the ventral fin starting point.

胸鳍末端可达腹鳍起点。

The leafy sea dragon propels itself by means of a pectoral fin on the ridge of its neck and a dorsal fin on its back closer to the tail end.

海龙的叶菜驱使一个手段本身的胸鳍上一脊其颈部和背鳍的背部接近尾声。

Pectoral fin long, far more than the end of the ventral fin base.

胸鳍长，末端远超过腹鳍基部。

The experimental results prove that an IPMC based centimeter scale micro robot fish is feasible. The velocity control can be realized by changing frequency and duty ratio of the control signal, and ascent-descent, turning, cruising can be realized by the cooperation of pectoral fin and caudal fin.

实验结果证明，基于IPMC的厘米级机器鱼是可行的：通过改变控制信号的频率和占空比，实现微型机器鱼的速度控制；通过控制胸鳍和尾鳍，实现上浮、下潜、转弯、巡游等运动模式。

Any of several rays of the family Mobulidae,inhabiting tropical and subtropical seas and having a large flattened body,winglike pectoral fin s,a whiplike tail,and two hornlike fin s that project forward from the head.

蝠鲼任一种蝠鲼科的鳐鱼，生活在热带或副热带海域，有大而扁平的身体和翼状的胸鳍，以及鞭状的尾，头的前部有两个角状的向前突出的鳍

Diagnostic characters for the recognition of species include the presence or absence of pectoral fin, the position of dorsal fin origin, gill opening, anus, nostril opening and eye, the cirri present or not, the dentition type, the body coloration, and th

一般依据胸鳍的有无或发达程度，背鳍起点、鳃孔、肛门、鼻孔和眼等的相对位置，颌的发达程度和颌上是否具须，齿的形状和排列方式，身体的斑纹，以及头部和体侧的侧线孔数目等进行鉴别。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。