常见例句雙語例句As viewed from water recycle and its recycle ratio, safety of flue gas cooler was discussed. That the very first 5 days after start up its the dangerous period.主要從水循環和循環倍率的角度，談高溫取熱爐的安全性，竝特別強調開工5天內是高溫取熱爐的危險期。 返回 recycle cooler