Song Dynasty was the refinement stage in the appreciation of the nature in China.

两宋是中华自然审美的精致化阶段。

youdao

We are pleased to announce that a new tyre physics model is currently in the testing and refinement stage.

我们很高兴地宣布，新的轮胎物理模型目前正在测试和完善阶段。

youdao

On Dixey's death in 1964, an obituary said "because of her natural dignity and refinement both on the stage and in private life, she played a leading part in making striptease into an acceptable entertainment".

BBC: Row over plaque for stripper Phyllis Dixey on London flats