英文缩写分类（I 开头）

I I2 I2C I2T I3DL2 I3DSS IA IA64 IAA IAAB IAAF IAAI IAAP IAB IABP IABS IAC IACB IACC IACIS IACM IACOMS IACS IACV IAD IADB IADC IADIC IAE IAEA IAEAC IAEG IAEI IAEMS IAF IAFC IAFDAD IAFF IAFS IAFSS IAG IAGC IAGG IAGOD IAH IAHE IAI IAIABC IAIS IAJFCM IAL IAM IAMG IAMIS IAN IANA IANAL IAP IAPA IAPCM IAPP IAPPS IAQ IAQS IAR IARC IARU IAS IASB IASC IASET IASO IAT IATA IATDMCT IATF IATS IAU IAV IAW IAWPRC IAWQ IB IBA IBAN IBASES IBBM IBBR IBC IBCN IBCS IBCSG IBDCA IBDN IBF IBGP IBI IBIPR IBIS IBJ IBL IBM IBMA IBMS IBN IBNR IBO IBOOP IBOR IBQ IBR IBRD IBS IBSS IBT IBTD IBTO IBU IBV IBW IBWA IBWM IBWN IC ICA ICAA ICANN ICAO ICAR ICB ICBC ICBD ICBE ICBG ICBH ICBI ICBM ICBO ICBT ICBW ICC ICCB ICCC ICCE ICCP ICCR ICD ICDN ICDR ICE ICEC ICEL ICES ICF ICFPA ICFTU ICG ICH ICHEME ICHS ICI ICIA ICICIL ICID ICIS ICITO ICJ ICLAS ICM ICMA ICMB ICMJE ICMM ICMP ICMR ICND ICNIRP ICO ICOMIA ICONS ICOP ICOR ICOSID ICP ICPA ICPC ICPO ICPR ICQ ICR ICRC ICRP ICRT ICRU ICS ICSA ICSG ICSID ICST ICSTIS ICSTY ICSU ICT ICTAC ICTI ICTV ICU ICUG ICVD ICW ICX ID ID50 IDA IDAPI IDARA IDAS IDB IDC IDCC IDCSP IDCT IDD IDDD IDDM IDE IDEA IDF IDG IDI IDK IDKY IDL IDLC IDMB IDMS IDN IDNET IDP IDPC IDPR IDR IDRP IDS IDSCS IDSE IDSL IDSP IDSS IDST IDT IDTC IDTS IDU IE IEA IEBUS IEC IECG IECQ IED IEDB IEE IEEE IEEE1394 IEEECS IEERA IEF IEG IEI IELTS IEM IEMS IEN IEO IEP IEPG IES IESG IEST IETF IETP IEU IEW IF IFA IFAA IFAB IFAC IFACAT IFAD IFAI IFAK IFAN IFANCA IFB IFC IFCA IFCAA IFCB IFCC IFCI IFCS IFD IFE IFEA IFEO IFF IFH IFIA IFIC IFIP IFIS IFITL IFLA IFM IFMI IFN IFO IFORS IFP IFPA IFPH IFPRI IFPS IFR IFRF IFRIC IFRS IFRSS IFRW IFS IFSA IFSEA IFSEM IFSR IFSSEC IFST IFSTAD IFT IFTU IFU IFWP IG IGA IGBT IGC IGCSE IGD IGE IGES IGF IGFET IGG IGL IGM IGMP IGN IGO IGOSS IGP IGR IGRP IGS IGTG IGU IGWB IGY IH IHA IHDL IHL IHM IHO IHP IHRA IHS IHSS IHV IHVS II IIA IIAS IIASA IIATA IIC IICL IID IIE IIED IIES IIFA IIFS IIHF IIIN IINCE IINM IIP IIPS IIR IIRC IIS IISD IISI IISP IISS IIT IITA IITF IIUC IIW IJCTB IK IKBS IKE IL ILA ILAC ILC ILD ILE ILEC ILF ILGWU ILHR ILI ILM ILMA ILMC ILMI ILO ILP ILS ILSAC ILSI ILSLA ILY ILZRO ILZSG IM IMA IMAP IMAP4 IMAWP IMB IMBA IMBC IMC IMCC IMCO IMD IMDB IMDG IMDM IME IMEI IMEO IMEWS IMF IMHO IMI IMIC IMIS IML IMM IMMD IMMED IMMT IMNI IMNSHO IMO IMOA IMOC IMOSHO IMP IMPS IMR IMRO IMRT IMS IMSA IMSI IMT IMT2000 IMTA IMTC IMTS IMTV IMU IMUX IN INA INADEQUATE INAP INBAR INC INCB INCC INCI INCL INCLDD INCLDG INCLTD INCM INCOTERM INCREF INCS1 IND INDB INDBMS INDEF INDON INDOR INDY INE INEPT INETD INEXP INF INFM INFO INFOL ING INGA INH INI INIC INJ INLO INM INMARSAT INMC INMOS INMP INMS INN INOC INP INPA INPADOC INR INRO INS INSA INSAT INSG INSM INSP INSS INSSM INST INSTAL INSTE INT INTA INTASAT INTCO INTELSAT INTERPOL INTIN INTIP INTL INTM INTRM INTRO COURSE INTS INTSE INV INVAP INVERSE INVIS INVT IO IO3 IOAS IOAU IOB IOBB IOC IOCA IOCB IOCC IOCP IOCS IOCU IOD IODC IOE IOEG IOH IOI IOJ IOLA IOLC IOM IOMC ION IONI IONL IOO IOOC IOOF IOP IOPAS IOPDS IOPP IOPS IOPSE IOS IOSB IOSC IOSCO IOSN IOT IOTB IOTE IOU IOV IOW IOWV IP IPA IPAH IPAI IPBX IPC IPCC IPCDN IPCE IPCL IPCP IPCS IPCSM IPD IPDC IPDL IPE IPEI IPF IPG IPH IPHONE IPI IPL IPLB IPLC IPLI IPLTC IPM IPMAT IPMB IPMCHINA IPME IPMEOS IPMI IPMS IPMSMS IPMSUA IPMUA IPN IPNG IPO IPOA IPP IPPA IPPB IPPBX IPPC IPPIC IPPR IPQC IPR IPRO IPRP IPS IPSE IPSEC IPSS IPT IPTG IPTU IPTV IPU IPUI IPV6 IPVN IPW IPX IQ IQA IQC IQF IQL IR IRA IRAB IRAS IRB IRBM IRC IRCC IRCM IRDA IRDS IRE IRES IRFAA IRFU IRG IRI IRIM IRIS IRISL IRL IRLA IRLAP IRM IRMA IRMC IRMM IRN IRO IRP IRQ IRR IRRED IRREVLC IRS IRSG IRSU IRT IRTF IRTJFS IRTO IRTU IRU IS IS3NA ISA ISAC ISAES ISAN ISAP ISAPI ISAR ISAS ISB ISBBE ISBC ISBL ISBN ISBP ISC ISCB ISCC ISCCI ISCII ISCP ISD ISDB ISDCN ISDN ISDNBA ISDNBRI ISDNPRA ISDNPRM ISDNUP ISDS ISDT ISDX ISE ISEC ISEE ISEF ISES ISESCO ISF ISFA ISFSI ISGRG ISGSR ISH ISHH ISI ISIC ISIDE ISIS ISL ISLAN ISLN ISM ISMA ISMAN ISMC ISMR ISMS ISN ISNN ISO ISOC ISODE ISOM ISOTC ISP ISPA ISPC ISPE ISPM ISPMB ISPMNH ISR ISRD ISRES ISRM ISRO ISS ISSA ISSC ISSCC ISSF ISSG ISSI ISSLL ISSN ISSS ISSX IST ISTA ISTC ISTE ISTM ISTP ISTV ISTWG ISU ISUP ISV ISVR ISVS ISWC ISWYM IT ITA ITA2 ITAA ITAL ITALSAT ITAT ITB ITC ITCA ITCB ITCC ITCM ITD ITDM ITE ITER ITF ITIA ITIC ITLC ITM ITMC ITN ITO ITOS ITP ITPC ITQ ITR ITRS ITRW ITS ITSC ITSO ITSP ITSS ITT ITTA ITTC ITTF ITTO ITTP ITTS ITU ITUR ITUT ITV ITWG ITWS IU IUA IUBC IUBMB IUCN IUCNNR IUCR IUD IUE IUFOST IUFRO IUGR IUGS IUI IUMS IUNS IUO IUOC IUPAB IUPAC IUPAP IUPSYSS IUR IUS IUSSP IUTAM IV IVA IVANS IVAP IVBC IVC IVD IVDC IVDROP IVDS IVDT IVE IVFET IVG IVGTT IVHS IVI IVIS IVMS IVN IVOD IVOT IVP IVPN IVR IVS IVV IW IWAN IWBNI IWC IWCC IWCE IWCS IWF IWK IWL IWLK IWP IWPA IWS IWTO IWU IWW IX IXAS IXC IXP IY IYHF IZ IZA IZASC