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- 四维HMM4-D HMM
- 四four
- 四维空间four dimensional space
- 四维的，四度空间的由四维确定或表现的，尤指三个空间维度和相对理论中的时间维度Specified by or exhibiting four dimensions, especially the three spatial dimensions and single temporal dimension of the relativity theory.
- 双四维double-four-dimension
- 四维矢four vector
- 四维势four potential
- 四维性four dimensionality
- 四维钙Four Vitamins and Calcium Gluconate Tablet
- 四维CTFour dimensional CT
- 四维地震4D seismic
- 四维瓷业Shiwei Porcelain Industry Co.
- 四维模型4D model
- 四维变分4DVAR
- 四维拓展four - dimension extension
- 四维坐标four dimension coordinate
- 四维理论four dimension theory
- 四维建构four-dimension construction
- 四维建筑four-dimensional architecture
- 四维制导four-dimensional guidance
