They are soft and smooth-skinned, with a circular or nearly circular Body disk formed by the head and pectoral fins. They are harmless unless touched or stepped on.
体柔软，皮肤光滑，头与胸鳍形成圆或近于圆形的体盘。如不被触及则对人无害。
Marine fishes with a flattened elongated body and a sucking disk on the head for attaching to large fish or moving objects.
身体扁平细长的海生鱼，头部有吸盘，可吸附于大鱼或移动的物体上。
In this paper, a computational method for coplanar disk-shaped cracks within an elastic infinite body is presented.
本文对于含有圆盘状共面裂纹群的无限体提出了一种计算方法。
The present invention can improve applied force strength of vortex filament body tongue on moving disk and static disk, and can increase of service life availably.
本发明能增强动、静盘涡旋线体舌的受力强度，可有效的延长使用寿命。
But when a body orbits inside a gaseous disk, its orbit shrinks and the body spirals gradually towards the planet as a result of the gravitational interaction of the body with the surrounding gas.
当一个天体的轨道处在尘埃云内时，由于与周边物质的引力作用，它的轨道将逐渐收缩，以螺旋渐进的方式接近主星。
This electromagnetic separator adopts a disk structure composed of magnetic coil, magnetic body and magnetic pole.
电磁除铁器为由励磁线圈、磁体、磁极组成一开式磁路的圆盘式结构。
The movement of whole-section tunneler is composed of forward movement of tunneler body pushed by the crowd cylinder and rotational movement of disk-cutter driven by the rotating motor.
全断面掘进机工作时的运动主要由推进液压缸推动机身的前进运动和旋转电机带动刀盘的转动组成。
According to the structural feature of parallel single disk gate valve, the strength and rigidity of body will be calculated with finite element method, and with cylindroid shell theory.
根据主闸阀结构特点，分别用有限元法和椭圆柱板壳理论公式计算了阀体的强度与刚度，并进行了分析对比，同时对闸板的刚度进行了校核。
Finally, we present the numerical results of a linear elliptic problem and flows around a fixed disk, and the comparison with body-fitted mesh results or experimental data.
文末给出了应用虚拟区域法得到的线性椭圆型问题、绕固定圆柱二维定常流动的数值结果，并与贴体网格上的结果或实验结果进行了比较以验证数值方法。
The disk body structure USES the heat radiation rib, which has good ventilation and good heat radiation.
盘体结构设计上采用散热筋，具有良好的通风散热性。
The input disk (28) is driven by a drive force supplied from a motor main body (92) of the motor apparatus (90).
输入圆盘(28)通过由电动机设备(90)的电动机机身(92)提供的驱动力进行驱动。
Through the redesign and revamp of the valve disk and body of rotary spindle, the technology is simplified, the cost is reduced and a large amount of foreign exchange is saved for our country.
回转接头的阀芯和阀套经重新设计和改造后，简化了工艺，降低了成本，为国家节省了大量外汇。
The utility model discloses a peeling machine which consists essentially of a box body, bent peeling blades, a driving disk and a gear.
本实用新型公开了一种削皮机，它主要包括箱体、削皮弯片、传动盘和传动装置。
Said rotary control disk rotates around the central axle on upper valve body to exchange position with conic valve core, so allowing medium to flow.
上阀体上装有中轴，旋转控制盘绕中轴转动与上下滑动锥形阀芯换位，实现介质流量、流向控制。
In each type, fish body may produce varied changes and form some appendages, such as oral disk, pelvic fin disk and thorax disk.
在各种类型中，鱼体上又有不同的形态结构产生。
Operative methods include cervical disk excision, cervical inter-body fusion and bone grafting and inner fixation, instable factor elimination. But eligible condition is relatively short.
手术治疗的方法主要是颈椎间盘摘除，融合植骨内固定，消除失稳因素，但其适应证相对较窄。
Operative methods include cervical disk excision, cervical inter-body fusion and bone grafting and inner fixation, instable factor elimination. But eligible condition is relatively short.
手术治疗的方法主要是颈椎间盘摘除，融合植骨内固定，消除失稳因素，但其适应证相对较窄。
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