backcalculation造句

Commonly used backcalculation software are BAKFAA ( Federal Aviation Administration ), Elmod ( Dynatest ), PVD ( KUAB ), MichBack ( Michigan DOT ) and Modulus ( TxDOT ).
The process of calculating the elastic moduli of individual layers in a multi-layer system ( e . g . asphalt concrete on top of a base course on top of the subgrade ) based on surface deflections is known as " backcalculation ", as there is no closed-form solution.
It's difficult to find backcalculation in a sentence. 用backcalculation造句挺难的