usw缩写的意思

bm ESP RR DIFAR HM NP ALC MA AO ZEEP SURFRR vd DCC APL ACP AJ ABL EMMA OPC NNN SDFG DEM TCM PWP RP gz BSE CAEA BM SP QB PME det ik SB GLC X. LDMI AG CFSE BP NTP HC SS AF BL HM WVD RNN CIM SNAP CAL K ASTRA AD SL MASS LCD QSAR cemf