adj.可感知的；可评估的；很可观的

There is no appreciable difference between the two. 两者之间没有什么可感知的区别。

I think that human exertion will have no appreciable effect upon humanity. 我想人类的努力对人性没有可评价的效果。

The increase in salary will be appreciable. 薪水的增加将很可观.