查询词典 frostbiting

Concrete frostbiting is the important factor that influence the concrete structure endurance. To ensure the endurance of some important project, more and more importance is attached to the concrete freezing resistance.

混凝土的冻害是影响混凝土结构耐久性的重要因素，为了保证一些重大工程的耐久性，混凝土的抗冻性已经越来越引起人们的重视。

At present there are mostly Hydrostatic Pressure Theory and Penetrative Pressure Theory with regard to concrete frostbiting principle after setting. But they are not the last word, because the pressure can not be measured directly or calculated exactly. The two theories can triumphantly explain much phenomenon about concrete in the freeze-thaw process.

混凝土硬化后的冻害机理目前主要有静水压学说和渗透压学说，由于不能直接测定或进行准确计算，所以还没有定论，但它们可以成功地解释混凝土冻融过程中的很多现象。

The light was high up on the cliffs.

那灯光是在高高的峭壁上。

The subject matter was grouped into discrete amounts of material that could be comfortably cowered in one lecture.

每个专题作为一个教学单位时间的授课材料；各个专题具有大体相当的份量。