cumulation造句怎么写

A GSP cumulation benefit also occurs when an imported article that was produced in two or more eligible member countries of an association is accorded duty-free entry.

CCD imaging luminance meter of wider range measure is obtained by using CCD with the function of charge cumulation, using methods of charge and digital cumulation.

The results also provide the useful guideline and references to a certain extent for city planning and designing as well as the diffusion and cumulation of air pollutants around buildings.