improvevt.改善；改进；提高vi.变得更好；改进improved BP NN改进BP网络improve flavor升香improve a tool改进工具improved grass改良草坪Improved TOPSIS改进TOPSIS法improved method改进方法improve a house改善住房Improved clones优良无性系improve society改善社会improved degree完善程度

1. The paper provides some plans to improve a shape coal machine.
   对工业型煤机的结构设计提供了成型的改进方案。