multiple isomorphous replacement造句

例句与造句

1. However, the problem still remained insurmountable, until in 1953 Max Perutz discovered that the phase problem in analysis of the diffraction patterns could be solved by multiple isomorphous replacement  comparison of patterns from several crystals; one from the native protein, and others that had been soaked in solutions of heavy metals and had metal ions introduced in different well-defined positions.
2. It's difficult to find multiple isomorphous replacement in a sentence. 用multiple isomorphous replacement造句挺难的