“…The optimal solution (7,6,16,4,5,3,12,1,10,13,9,15,2,8,11,14) area of MLCML amounts to 12.9 m 2 ; together, the volume is 23.2 m 3 , whereas the total handling distance amounts to 1332.6 m. In comparison with SLCML, the area of MLCML lowered by 57.6%, space, which was saved by 23.7%, and the carrying distance was lowered by 29.2% as well. Practical cases shed light on the fact that the MLCML offers robust advantages in engineering applications.…”