It'seemed a pity to disturb the drowsing ( or dozing ) professor.弄醒正在打盹的 ( 或打瞌睡的 ) 教授似乎很糟糕.I'm just trying to refrain from drowsing at work.我只是试着别在工作时打瞌睡而已....
Slow, careful curing of the concrete improves the hydration of the cement.混凝土的缓慢而精心的养护可以改善水泥的水化作用.ZL and lignosulphonate calcium don't harm the strength development of granular soil stabilized with cement.ZL和木钙两种缓凝剂...