Cartesian robot

例句：

1. 1. The Cartesian coordinate system is widely used in physics and engineering.
   笛卡尔坐标系在物理学和工程学中被广泛使用。
2. 2. The Cartesian plane divides the space into two regions: the positive and negative x-axis.
   笛卡尔平面将空间分为两个区域：正x轴和负x轴。
3. 3. The Cartesian equation describes a line in three dimensions.
   笛卡尔方程描述三维空间中的一条直线。