I have a motion of an object along a straight line we'll call that one-dimensional motion.

假设有一物体，沿直线运动，我们把它称为一维运动。

youdao

Explained the definition of space right, space refers to the right to land at the air or to one three-dimensional cross-section of the object set up for a real estate rights.

将空间权的定义阐释为，在土地的空中或者地中横切一立体空间而成立的一种不动产权利。

youdao

Technique of three-dimensional object recognition is one of the most important techniques in video tracking system and also a difficult problem in it.

三维目标识别技术是电视跟踪系统中的关键技术之一，也是目前该领域亟待解决的一个难题。

youdao