improve the quality of products ==> 提高产品质量 improve the quality of varieties ==> 提高品种质量 improve the tilth of the soil ==> 改良耕层 ..
双语例句
1
In the future, the research of APG should dedicate its efforts to improvequality, decrease cost, increase varieties and expand application areas.
今后烷基多苷的研究应致力于提高质量、降低成本、增加品种和扩大应用领域。
2
Connecting present domestic situation of rice varieties' quality, brought out the countermeasures on variety selection, yielding level, cultivation system, etc. to improve the rice quality.
结合当前我国水稻品种的品质现状，提出了从品种选育、加工水平、栽培体系等方面来提高稻米品质的对策。
3
It becomes the main means to improvethe lint yield and the qualityof fiber by using heterosis that had proved to be existed within different cotton varieties.