例句與造句

1. The paradigm structure for a cluster was chosen from the top-scoring 20 segments in the database as that with the smallest sum of mda values to the other 19 . Other structural measures were tried before settling on these two : RMS deviation of a-carbon atoms ( rmsd ), dme alone, and a structural filter that looked for specific conserved contacts.
2. It's difficult to find structural filter in a sentence. 用structural filter造句挺難的