ei缩写的意思

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