三维空间组合普遍被叫做复式，利用空间需求高度的不同，不同种类的家具可以

A combination of three-dimensional space is commonly called a double, using the space requirements of different height, different kinds of furniture can restructure the design in three-dimensional space, in order to achieve efficient use of space.

Three-dimensional space combination is commonly called duplex, the use of space demand height differences, different kinds of furniture can be recombined in three-dimensional space design, in order to achieve the purpose of efficient use of space.

The combination of three-dimensional space is generally called compound. Different kinds of furniture can be reorganized in three-dimensional space to achieve the purpose of efficient use of space.<br>