Now, a lesion that looks like leukoplakia, but isn't, is an area of frictional keratosis.
如种看起来像口腔黏膜白斑,但其实不
的病损——摩擦性角化。
The implication is that such unemployment as exists at any time is due wholly to the fact that changes in demand conditions are continually taking place and that frictional resistances prevent the appropriate wage adjustments from being made instantaneously'.
意味着任何时候都存在的
种失业完全
由于需求条件不断发生变化以及摩擦阻力阻止立即进行适当的工资调整
事实造成的。