window-dressing
n [U]
(a) art or skill of arranging goods attractively in shop windows 橱窗装饰术.
(b) (usu derog 通常作贬义) presentation of facts, etc in a way that creates a good (and often false) impression 给人良好印象的展示手法(常指虚伪的)
The company´s support of scientific research is just window-dressing. 这个公司支持科学研究只不过是摆样子给人看的.