One of the more difficult processes is the manufacture a sterile BPC.
许多复杂工艺之一是制造无菌得原料药。

Some manufacturers list the specific solvent for each BPC and intermediate.
一些制造商列出了每一原料药和中间体的具体溶剂。

However, it is likely that computer systems will be associated with BPC production.
然而，计算机系统将和原料药的生产相关。

Typically, however, ethylene oxide does not penetrate the BPC in this powdered form.
典型地，然而，环氧乙烷并不会以粉末的形式渗透到原料药中。