The corrosion of reaction caldron in the aeroconcrete production is a difficult problem,it makes the service life of reaction caldron only half of the design life.
蒸压腐蚀致使反寿命只有计寿命右,直是困扰建材行业多年难题。
声明:以上例句、词性分类均由互联网资源自动生成,部分未经过人工审核,其表达内容亦不代表本软件的观点;若发现问题,欢迎向我们指正。