保护措施

Textile workers favoured protection.

纺织工人拥护贸易保护措。

In this paper, the protection measures of carbohydrate during pulp TCF bleaching, such as oxygen, ozone, peroxide, peracid and photochemistry reaction of bleaching, were respectively.

摘要本文综述的氧气漂白、臭氧漂白、过氧氢漂白、光催漂白、过氧酸漂白中碳水合物的保护措。