查询词典 kinematics

The spatial and temporal evolution of simulated velocity and cloud microphysics fields show that the coupling of vertical velocity and vapor distribution is a kinematics criterion for vapor condensation and freezing that result in snow.

模拟的 运动场和云微物理量场的时空演变表明，垂直运动场与水汽场的耦合是水汽凝结和冻结成雪的运动学条件；气旋性涡柱和上升运动及深厚湿舌的耦合是暴雪形成的一种重要动力机制。

The paper presents the formulation of the inverse kinematics of the 3-RSS/RU parallel mechanism and analyzes the direct solution. It deduces velocity Jacobian matrix. The moment transfer Jacobian matrix is obtained base on the principle of virtual work and simulated the input and output.

本论文首先推导了3-RSS/RU并联机器人的运动学反解方程，并对位置正解进行了分析，推导了速度雅可比矩阵，在此矩阵的基础上，利用虚功原理得到了力矩传递雅可比矩阵，对力矩的输入输出做出了仿真。

Methods Ten fresh-frozen foot specimens, three-dimensional kinematics of talonavicular joint were determined in the case of neutral position, dorsiflexion, plantoflexion, adduction, abduction, inversion and eversion motion by means of three-dimensional coordinate instrument （Immersion MicroScribe G2X） before and after calcaneocuboid arthrodesis under non-weight with moment of couple, bending moment, equilibrium dynamic loading.

方法10只新鲜尸体足标本，通过建立非负重位尸体足模型，结合力偶矩、弯矩及平衡加载方法，应用三维坐标仪测量分析跟骰关节融合前、后距舟关节在大体足背屈、跖屈、内收、外展、内翻及外翻运动中的三维运动度变化。

Forward and inverse kinematics, velocity and acceleration problems were solved in detail via complex number notation in this dissertation.

本文采用复数向量表示法详细分析了机器人的运动学的正、逆问题，速度、加速度正、逆解问题。

The paper includes the kinematics of PDC bit, the rock cutting mechanism of a single PDC cutter and multiple PDC cutters, the design theory and method of the spatial orientation of PDC cutter work surface, the arrangement, theory and method for placing PDC cutters onto bit body, and so forth.

研究内容包括PDC钻头运动学、PDC钻头单齿破岩规律、重迭及覆盖条件下PDC切削齿的破岩规律、PDC钻头切削齿工作面空间方向的设计理论及设计方法、PDC钻头设计时的布齿理论及布齿方法等。

Rheology is the liaison between geometry and kinematics as well as dynamics of continental orogen.

流变学研究是大陆造山带几何学、运动学和动力学的桥梁。

Being one major content of orogenic evolution, study of deformation history is an effective way to reveal the kinematics and/then discuss the dynamic process of the orogen.

了解造山带的构造变形特点，是研究造山带形成演化过程的一项重要内容，也是获得造山带运动学和动力学信息的主要途径之一。

In the second stage, through the laboratory experiments, the effect of different orthotic design on the kinematics, kinetics and muscle activity of lower extremity, as well as the rating of perceived exertion were evaluated.

第二阶段的研究在於了解不同矫正鞋具的设计对於扁平足儿童在下肢运动学、动力学、肌肉活动度和主观心理感受等反应的影响。

The transmission and superposition of the error among the loops are analyzed according to the orders from the inner loop to the outer loop at the point of view of the physics kinematics.

通过这种对误差的定量分析，可以直观的观察各类误差在总误差中所占的比重，为有针对性的设计系统提供了重要的理论依据。

In order to improve the kinematics accuracy of parallel machine tool and to simplify error resource model (including 42 errors), a new kind of algorithm on parallel mechanism structural errors reorganization is proposed in this paper based on the fast algorithm of parallel mechanism forward displacement analysis.

为了提高并联机床的运动精度，针对简化误差源模型（含42个误差量），基于并联机构位置正解的快速算法提出了一种结构误差识别的新算法。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。