坐标系的

An accurate and simple formula of the absolute angular velocity of the rotating coordinate system Including solar gravitational perturbation is derived.

所提供的相对动力学模型与J2000坐标系下的绝对动力学模型完全等价。

Unsteady flow field due to rotor-stator interaction in turbomachinery is studied in this paper. The integral kinetic equations with absolute and relative velocity are derived.

本文以叶轮机械内部动静部件耦合的非定常流场为研究对象，在绝对坐标系下建立了包含绝对速度与相对速度的统一运动方程组。

Methods: A 3-D coordinate system was designed for skull, based on Frankfurt horizontal plane and analytical geometry method.

以颅骨的耳眼平面为基础定位平面，按解析几何方法设计颅骨的三维空间坐标系。

Asphericity Q in 360 meridians could be calculated. This is the curvature coefficient for the corneal function of asphericity.

建立以角膜顶点为原点的笛卡儿空间三维坐标，绕Z轴旋转坐标，形成新的三维空间坐标系。

Full curving axis coordinate system, one of the bases of quantitative graphs, is a category of curving axis coordinate system.

全曲轴坐标系是曲轴坐标系统中的一类，是量化图形的数学基础之一。

Based on the perfectly matched layer absorbing boundary condition, a new form of PML absorbing boundary condition in cylindrical coordinate suitable for optical fiber is derived.

在已有的完全匹配层吸收边界条件的基础上推导了圆柱坐标系下适用于光纤计算的PML吸收边界条件。

This means that we assume the existence of a sea of ether with all c.s. resting in it, or moving relative to it.

这就意味着我们要假定有一个以太海，所有的坐标系都静止在以太海中或相对于以太海运动。

We must not consider space and time separately in determining the time-space co-ordinates in another c.s.

在决定另一个坐标系中的时空坐标时，我们不能把空间和时间分开来考察。

The paper uses the strategies of pitch angle control and rotational speed control. For the rotational speed controller, vector control method in the dq synchronous rotational frame was employed.

系统采用了桨距角控制和发电机转速控制策略，而发电机转速控制采用了dq同步旋转坐标系下的矢量控制。

Site velocities in southern Kamchatka peninsula are generally greater than in the middle and north of this area.

在球坐标系中解算了各应变率分量，分析了应变率场的空间分布特征，并与地震学和地质学研究结果进行了综合对比分析。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。