个别的

So they try to untangle what is undiscernible or to determine what belongs to each of us.

所以他们企图拆开其实是密不东西，并且设法区属我们个别东西。

Obviously this method has every limited application in most instances, because of the impossibility or impracticability of segregating specific items as coming from separate purchases.

由于要辨认存货不同买来源具体批次是不现实，很明显个别计价法使用有很限性。