1.Water seethed in the caldron.

1.水在大锅中翻滚。

2.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.

2.蒸压腐蚀致使反有设计一半左右,一直是困扰建材行业多年难题。