OS缩写的意思

DL APC AUG SCM OT SPZ MAS URO IIS GDP OTC ABE ASS U.S.P. PRL PLT/BPC ALM LMA CHO ROH TC APLL ACLA N.F. AC HB ABIC AOSC AEB ECU IWP BWP PICP IECG TDA APCF MA LTP STD ATR AACC dm SGOT Tab INCB EPI DSPS AO CSCO VM NSA AACG C ABY An PH DDC NCCLS ASOM DEXA