经济学

• 完善

  Improving the legislation and regulation on our creditIII.

  其二，完善我国信用方面的法律法规。

• 改善

  The paper is aimed at improving the situation of a useful experiment.

  本文正是旨在改善这种局面的有益尝试。

• 改进

  Improving China’s fund flow statements.

  对我国资金流量表进行改进。

法学

• 完善

  Parter Three:Advices on improving our civil retrial sistem.

  第三部分:完善我国民事再审制度的建议。

农业科学

• 提高

  Some important measures were discussed for improving periodical information service.

  以进一步提高期刊信息服务的质量。

• 改良

  Potential and strategy of further improving of heterosis were investigated.

  根据遗传体系的信息以及杂种优势的表现，探讨了改良油菜杂种优势的潜在可能性。

机械工程

• 改进

  With the advancement of computer technology, the methods used are constantly improving.

  随着计算机技术的进步，所采用的方法也在不断的改进中。

交通运输工程

• 提高

  That proved that the HEV is useful for improving fuel economy.

  从而验证了混合动力车对提高燃油经济性的有效性。