space axes

Dimensionality reduction process can be divided into two steps. The first step is to select pivot points to determine the coordinate axes in a target space.

降维过程主要分为两步，首先通过选择枢纽点确定目标空间中的坐标轴，然后计算数据集中的样本点在这些坐标轴上的投影坐标。

Finally, the thesis will discuss the selection of step length, string space and radius of spherical cutter in the three coordinate axes and two axes linked machining center based on the practice of NC machining for revolution surface parts.

本文还通过旋转曲面零件的数控加工实践，对二坐标联动加工时直线插补步长、行距及球刀半径的选择进行了探讨。

Considering that it is more meaningful to know the acceleration components relative to a moving trace instead of those along longitudinal, lateral and normal axes of targets, a time-varying nonlinear state model describing tangential and normal acceleration maneuvers of targets in three-dimensional space is established.

建立了描述目标在三维空间中进行切向与法向机动的非线性状态模型。

By studying the morphological characteristics of the whole space of Qianyang ancient city-one ring, two axes, two hearts, analyzed the characteristics of the city center area, filled lot and the edge of the lot.

通过研究黔阳古城整体空间一环、两轴、两心的形态特征，分析了古城的空间演化过程及古城的中心区、填充区和边缘区特点。

Results Thirty-seven of the 41 patients showed malalignment, tilt, rotation, overlap of the teeth and the different space between the longitudinal axes of the teeth. Twenty-five cases of them have shown 36 buried teeth in all.

结果41例中37例见牙体长轴排列不整齐，倾斜、旋转、重叠，牙齿长轴间距离不等，其中25例共有36颗埋伏牙。