例句與造句

1. The two GGPP molecules are condensed together followed by removal of diphosphate and proton shift leading to the formation of phytoene.
2. The loss of water and subsequent generation of a double bond between the recently formed nitrogen-carbon sigma bond results in the formation of iminiumion "'4 "'. "'4 "'undergoes a 1, 5-proton shift from the nitrogen to the carbonyl oxygen, seen in "'5 " '.
3. It's difficult to find proton shift in a sentence. 用proton shift造句挺難的