用productive structure造句子，“productive structure”造句

Only by optimizing the productive structure and varitety of ferroalloys, the new requirement to steels used for train speeded-up can be met.

The problem of the regulation of productive structure in agriculture in MuDanJiang city is studied in the paper.

And this new, more capital-intensive productive structure is fully sustainable, since it is fully backed by prior, genuine, real savings.