typic造句怎么写

In this paper it is presented the development tendency of oversea DSP technique, main manufacturers of DSP and their leading products as well as the typic system.

Abounding in gas and condensate, the Banqiao region of Dagang oil field is a typic condensate reservoirs.

The determination of pyridine adsorption of samples revealed that materials have a typic characterization of proton acid, and the proton acid centers increased with the increase of s content.