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- For forward singularity, the Jacobins matrix is obtained based on velocity projection, a new notion of spatial instantaneous axis is introduced, and the expressive form of the parallel mechanism singularity is given when it is generated. 对于正奇异，推导出一种基于速度投影的雅可比矩阵求解方法，提出了空间瞬时轴这一新的概念，并给出奇异产生时并联机构正奇异的表现形式。
- spatial instantaneous axis 空间瞬时轴
- In order to secure uniform mixture effect, the screw inner point of the tapered planetary gear train mixer should locate on the planetary gear instantaneous axis. 为保证均匀混合效果，锥形双动式搅拌器的螺杆内侧点必须落在行星轮瞬时轴上。
- normal spatial instantaneous vector 正常空间瞬间向量
- Instantaneous Axis and Meshed Axis 对瞬时轴和啮合轴的探讨
- the method of instantaneous axis 瞬轴法
- characteristics of spatial instantaneous polarization 空域瞬态极化特性
- The rotational inertia of rigid body to its instantaneous axis 刚体对转动瞬轴的转动惯量
- Infer instantaneous axis equation of rotating rigid body by matric algebra 矩阵方法推导刚体转动瞬轴方程
- Death is instantaneous in a fatal accident. 在致命的事故中，死亡是即刻发生的。
- The heavy ax was awkward to use. 这把重斧头不好用。
- The reaction of the audience was instantaneous. 观众即刻有了反应。
- The axis of a circle is its diameter. 圆的轴线是其直径。
- The firemen splintered the door with an ax. 消防队员们用斧头将门砸开。
- Does the earth rotate on an axis? 地球是绕轴旋转的吗？
- A wheel revolves round/on its axis. 轮子是绕轴旋转的。
- The man cleft a block of wood in two with an ax. 那人用斧头把一块木头劈成两半。
- John got the ax from Mary-they won't see each other again. 约翰被玛丽拒绝了－他们从此不再来往。
- Having or mounted on a common axis. 同轴的有或装上共同轴的
- Discussion on Relationships among Instantaneous Axis Perpendicularity, Average Axis Perpendicularity and Wobble 论瞬时轴线垂直度、平均回转轴线垂直度与Wobble的关系
