In this process, protein translocation machineries of the outer and inner membranes, at least three major translocase complexes, are needed to ensure the proper import of precursor proteins.

• 在此过程中，需要线粒体外膜和内膜的蛋白质运输机器（至少三种主要的移位酶复合物）来保证前体蛋白质的正确运输。