Subjective reasons:? + Do meshing too big or way of meshing.? + Because users are not accurate software: s controller during user program can manipulate in some places as wrong placing vents positioned incorrectly on the product, or placing the cooling system is not right ...? + Because these parameters in real squeeze in software and unlike nhau.?+ materials and properties of materials the software is not like the fact (by other manufacturers, different brands, different chemical composition), ...
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