NNN缩写的意思

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