空间运动

Combining the homogeneous matrix transformation theory of space mechanism and computer graphics, we raise the general principle and motion simulation's method of complicated mechanism, which is represented by spacial multipole structure of open chain.

通过将空间机构学齐次矩阵变换原理和计算机图形学原理相结合，提出了以空间多杆开式链机构为代表的复杂机械系统运动三维图形仿真的一般原理和方法。

In order to reduce the influence of the vibration on image quality, an irrotational displacement isolator is designed based on spatial mechanism and vibration theory, which mainly consists of base platform, moving platform, spatial linkage mechanism and vibration isolators.

为了减小振动对系统成像质量的影响，应用空间机构学原理和减振理论设计由基座平台、运动平台、空间连杆机构和减振元件组成的减振机构。

Even without that kind of space or equipment, you can still do stretches and different kinds of isometric exercises at your desk.

即使没有那样的空间或设备，你还是可以在办公桌旁做伸展运动以及各种相同运动量的运动。

While the idea and the prototype of the three-degree-of-freedom motor came into being, it is more convenient to realize the motion of the robot joint where the demand on workspace is low but three DOF is required. It also combines the merits of simplified system construction, minimized machine volume, improved dynamic and static performance with high position accuracy.

三自由度球形电机设计概念及样机的出现，使得机器人关节的空间三维运动可以在一个较小的工作空间中完成，简化了系统结构，减小了机构体积，有利于提高系统的动、静态性能和定位精度。

Presentational training method of image movement adopts psychological principles, utilize iterative memory and image to stimulate the central nerve system of the cerebra, and prompt the process of thinking. It can help the students to understand and master the mechanism of the action so as to make the ocular presentation and kinesthesia nerves connect with each other.

想象运动表象训练方法采用心理学的研究成果，利用反复记忆与想象，刺激大脑中枢神经系统，促进思维过程活跃，帮助学生理解和掌握技术动作的机理，使所获得的视觉表象与动觉神经有机联系起来，形成肌肉的用力感、空间方向感、身体的平衡感和运动速度感。

The mentioned control scheme can effectively control two joint of space manipulator to stably track the desired trajectory in joint space. It has obvious advantages that with needless feedback and measured the position, velocity, acceleration, attitude angle velocity and attitude angle acceleration of the floating base. At the same time, no requirements for the dynamic equations of the system are linearly dependent on inertial parameters.

文中提到的控制方案能够有效地控制漂浮基空间机械臂的载体姿态及机械臂关节，可以协调地完成期望的轨迹运动，并具有不需要反馈和测量空间机械臂载体的位置、移动速度、移动加速度，同时也不要求系统动力学方程关于系统惯性参数呈线性函数关系的显著优点。

Cardiovascular dysfunction not only influences the astronauts'health and decreases the performance in space, but also results in maladaptation when the astronauts returned to 1 G on earth. Orthostatic intolerance and decreased exercise capacity are involved in such a process, underlying mechanisms and valuable countermeasures remains to be established.

心血管功能失调不仅会对航天员在空间的工作能力和健康产生一定的影响，而且还可能影响到航天员从空间返回到地面的再适应过程，其最主要表现是立位耐力和运动耐力下降。

McPherson suspension is one of the most popular independent suspensions in passenger car.

麦弗逊悬架是汽车上最常采用的一种型式，其运动分析是解决整车布置设计问题和提高悬架特性的基础，本文以空间解析几何分析方法探讨了该结构的运动分析方法。

Therefore may say the black hole the evolution is the big universe big space evolution, forms the partial universe the macroenvironment, such as: Metagalaxy, individual galaxy; But the big photostar movement evolution is the microcosm small space evolution, thus forms in universe the microenvironment small unit, such as: New star, new planet; These constitute the entire universe riotous color together, as well as unequalled magnificent picture and wrapped in a shroud of obscurity each kind of interspace movement!

因此可以说黑洞的演变是大宇宙大空间的演变，形成局部宇宙的大环境，诸如：总星系，个体星系；而大星体运行的演变是小宇宙小空间的演变，从而形成宇宙内的小环境小单元，诸如：新的恒星、新的行星；这些共同构成整个宇宙的缤纷色彩，以及无与伦比的壮观景象与神秘莫测的各种星际运动！

The text generalizes the space characters of clothing shape as same construction, movability, variability and openness.

将服装造型的空间特征概括为同构性、移动性、可变性和开放性，并通过这些空间特征研究造型与人体运动的适应性，进一步深化服装造型设计，使服装与人体更有效地达到协调统一

I didn't watch TV last night, because it .

昨晚我没有看电视，因为电视机坏了。

Since this year, in a lot of villages of Beijing, TV of elevator liquid crystal was removed.

今年以来，在北京的很多小区里，电梯液晶电视被撤了下来。