查询词典 bilateral symmetry

Multicellular animals, a system, both radial symmetry and bilateral symmetry of the characteristics of comb jellyfish found in animals and Anthozoa animals.

多细胞动物的一种体制，兼有辐射对称和两侧对称的特点，见于栉水母动物及珊瑚纲动物。

As we presented in the paper, with the evolution procedure accomplished of neurons from the single-celled organisms and multicellular animals that lack nervous system, the evolution course of nervous system could be summarized briefly as: Chaos phase, Equally nerve net, Centrilized network phase and Bilateral symmetry, hierarchical organization and cephalization phase.

研究表明，从原始的单细胞有机体类似神经动作电位的协调功能逐步进化成神经元开始，神经系统大致经历了混沌阶段、平权网络阶段、中心化网络阶段和双侧对称的层次体系结构等进化阶段。

Planetary nebulae are a type of isolated gaseous nebulae possessing a fair degree of bilateral symmetry.

行星状星云是一类孤立的气体星云，具有相当程度的双侧对称性。

A remarkable degree of bilateral symmetry is characteristic of certain diseases such as dermatitis herpetiformis, vitiligo, and psoriasis.

双侧对称分布是某些疾病的特征，如疱疹样皮炎、白癜风、银屑病。

For the foramen spinosum, bilateral symmetry in 3 cases(15%) and asymmetry in 17cases(85%).

卵圆孔呈圆形8例(20%)，呈椭圆形32例(80%)。

The second milestone was the development of bilateral symmetry ( two halves of the body mirror each other ) with an identifiable head , in contrast to radial symmetry ( symmetrical in a ray pattern from the center ), for example , jellyfish .

第二个重要事件是动物身体进化成两侧对称，并出现明显的头部组织。当然也有例外，例如海蜇这种生物就是径向对称（即对称点在身体中心，呈放射对称）。

This can be done using computer vision technique and from symmetry property of potteries. The problem of recovering the 3D shape of a surface of revolution from images is addressed. The algorithm makes use of the symmetry properties of a surface of revolution and its silhouette to rectify the image such that the resulting silhouette exhibits bilateral symmetry.

在该方法的实现过程中，首先利用旋转平台获取了旋转体的影像，然后基于物方的空间圆重建方法精确测量旋转体的上口，从而得到旋转体的旋转轴，再根据影像的方位元素对影像进行纠正，使得旋转体的轮廓线在影像上的成像左右对称，最后直接用纠正后的影像精确计算旋转体的形状。

The cable-stayed bridge with single tower usually includes two types: bilateral symmetry and bilateral asymmetry.

独塔斜拉桥一般分为两跨对称式和两跨不对称式两种，实际工程中由于地质、地形、水文等情况，往往采用两跨不对称形式。

Flatfish, such as the flounder, are among the few vertebrates that lack approximate bilateral symmetry (symmetry in which structures to the left and right of the body's midline are mirror images).

鲆鱼，例如比目鱼，是少数左右两侧不太对称的脊椎动物之一（左右两侧对称指的是身体中线左右两边的结构为镜象反射）。

On the basis of the modeling and analyzing of the transmission system of the PQS-3-D elevator for car in the preamble, this article analysis the reason of the small difference of the angular speed, angular acceleration, angular displacement curve between the bilateral symmetry components. Actually, it is the result of that the torsional rigidity of the bilateral drive shafts are different, therefore has made the revision suggestion to the drive shaft parameter.

在对PQS-3-D型汽车专用升降机传动系统建模分析的基础上，分析左右对称传动构件的角速度、角加速度、角位移曲线在系统起动时间内有较小差异的主要原因，发现是由于左右传动轴的扭转刚度系数不同造成的，故对传动轴的参数做了修改建议。

By the time of its fall, most of the prisoners were writers who had written against the corruptions of the government.

到它被攻陷的时候，里面多数的犯人是写了反对政府贪污文章的作家。

The most obvious variation to ovum morphological character was that the color was changed from light green to sepiaceous in embryonic development, and all the ovums were almost hatched after 96h.

在胚胎发育过程中卵的形态特征最明显的变化是颜色从淡绿到深褐色，卵在发育96h后卵基本全部孵化。