protection fence短语¹⁸⁰⁰⁹⁸⁺¹ 基本例句 护篱 A self- designed application technology of powder coatings static spray on the protection fence of highways has been described. 介绍了自行设计的粉末静电喷涂高速公路护栏板涂装工艺。 dictall There is no protection fence for coal pulverizer. 磨煤机无防护栏。 blog.sina.com.cn