基本解释v.预热同根派生 英汉例句用作动词 (v.)The processes of preheating and welding of super scale penstocks were detailed.本文详细叙述了巨型压力钢管的预热装配和焊接过程。Condensate from the first-effect calandria is used for preheating the feed.一效列管换热器中出来的冷凝液被用来预热进料。