个别的

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

所以他企图拆开其实是密不可分东西，并且设法区分分属我东西。

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，显计价法使用有大局限性。