“…The construction of the Digital Twin model is oriented to meet the actual business needs and solve specific problems, with "eight uses" (usable, universal, quick use, easy to use, joint use, joint use, live use, and good use) as the goal, "four trends" of the digital twin model (precision, standardization, lightweight, and visualization) [10][11][12][13] as the requirements, and "four cans" (interactable, convertible, reconfigurable, and evolvable) in its operation and operation as the requirements, and explored and established the theoretical system of "construction-assembly-fusion-verificationvalidation-management" for the modelling of the digital twin model [14][15][16] .The schematic diagram of the equipment digital twin is shown in Figure 3.…”