расхождение между
см. тж. разница между
• The main discrepancy between the predicted and experimental value is due to friction in the fluid.
• There is a significant disparity (or difference) between the grade of the ore being currently mined and the grade of the total ore reserves.
• A gap between estimated and observed ultraviolet radiation ...
• Discordance between the observed and computed positions of the Moon ...
Русско-английский научно-технический словарь