[{"title":"( 2 个子文件 1KB ) comsol license 5.4 亲测可用","children":[{"title":"LMCOMSOL_Multiphysics_SSQ.lic <span style='color:#111;'> 3.72KB </span>","children":null,"spread":false},{"title":"ReadMe.txt <span style='color:#111;'> 71B </span>","children":null,"spread":false}],"spread":true}]