例句與造句

1. To investigate the effect of dialysis with balancing amino acid dialysate on serum free amino acid in chronic hemodialysis patients , twenty - nine chronic hemodialysis patients were enrolled in this cross - over study
   摘要目的：研究一種平衡型氨基酸透析液，探討其對(duì)維持性血透患者血游離氨基酸含量的影響。
2. It's difficult to find cross-over study in a sentence. 用cross-over study造句挺難的