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1·The Keynesian theory deals with the involuntary unemployment under the hypothesis of wages rigidity, suggesting that raising price and reducing the real wages can only be valid in a short-term.

文章认为，凯恩斯在货币工资富有刚性的假设下，通过提高价格水平、降低实际工资，解决非自愿失业问题的理论，只能在短期有效。

2·The aim of this invention is to provide a deafener for vehicle with high strength, fine rigidity, light weight, and low price.

本发明的目的是提供一种强度高、刚性好并且重量轻、价格便宜的车用消声装置。