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1、Validite de la presente publicationLe contend technique des publications de la CEI est cons-tamment revu par la CEI afin qull reflete fetat actuel dela technique.Des renseignements relatifs 台 la date de reconfirmation dela publication sont disponibles auprds du Bureau Central dela CEI.Les renseignem
2、ents relatifs a ces revisions, a Petablis-sement des editions revisees et aux amendements peuventetre obtenus aupres des Comites nationaux de la CEI etdans les documents ci-dessous: Bulletin de la CEI Annuaire de la C日Publie annuellement Catalogue des publications de la CEIPublie annuellement et mis
3、 a jour regulierementTerminologieEn ce qui concerne la terminologie generale, le lecteur sereportera a la CEI 50: Vocabulaire Electrotechnique Inter-national (VEI), qui se presente sous forme de chapitressepares traitant chacun dun sujet defini. Des detailscomplets sur le VEI peuvent etre obtenus su
4、r demande.Voir egalement le dictionnaire multilingue de la CEI.Les termes et definitions figurant dans la presente publi-cation ont ete soit tires du VEI, soit specifiquementapprouves aux fins de cette publication.Symboles graphiques et litterauxPour les symboles graphiques, les symboles litteraux e
5、t lessignes dusage general approuves par la CEI, le lecteurconsultera: la CEI 27: Symboles litteraux a utiliser enelectrotechnique;一 la CEI 417: Symboles graphiques utilisablessur le materiel. Index, releve et compilation desfeuilles individuelles;一 la CEI 617: Symboles graphiques pour schemas;et po
6、ur les appareils dlectromedicaux,一 la CEI 878:Symboles graphiques pourequipements dlectriques en pratique medicale.Les symboles et signes contenus dans la prdsente publi-cation ont ete soit tires de la CEI 27, de la CEI 417, de laCEI 617 et/ou de la CEI 878, soit specifiquement approuvesaux fins de
7、cette publication.Publications de la CEI etablies par lememe comite detudesLattention du lecteur est attiree sur les listes figurant a la finde cette publication, qui enumerent les publications de laCEI preparees par le comite d*etudes qui a etabli lapresente publication.Validity of this publication
8、The technical content of IEC publications is kept underconstant review by the IEC, thus ensuring that the contentreflects current technology.Information relating to the date of the reconfirmation of thepublication is available from the IEC Central Office.Information on the revision work, the issue o
9、f revisededitions and amendments may be obtained from IECNational Committees and from the following IECsources: IEC Bulletin IEC YearbookPublished yearly Catalogue of IEC publicationsPublished yearly with regular updatesTerminologyFor general terminology, readers are referred to IEC 50:International
10、 Electrotechnical Vocabulary (IEV), which isissued in the form of separate chapters each dealingwith a specific field. Full details of the IEV will besupplied on request. See also the IEC MultilingualDictionary.The terms and definitions contained in the present publi-cation have either been taken fr
11、om the IEV or have beenspecifically approved for the purpose of this publication.Graphical and letter symbolsFor graphical symbols, and letter symbols and signsapproved by the IEC for general use, readers are referred topublications:一 IEC 27: Letter symbols to be used in electricaltechnology;一 IEC 4
12、17:Graphical symbols for use onequipment. Index, survey and compilation of thesingle sheets;一 IEC 617: Graphical symbols for diagrams;and for medical electrical equipment,一 IEC 878: Graphical symbols for electromedicalequipment in medical practice.The symbols and signs contained in the present publi
13、cationhave either been taken from IEC 27, IEC 417, IEC 617and/or IEC 878, or have been specifically approved for thepurpose of this publication.IEC publications prepared by the sametechnical committeeThe attention of readers is drawn to the end pages of thispublication which list the IEC publication
14、s issued by thetechnical committee which has prepared the presentpublication.NORMEINTERNATIONALEINTERNATIONALSTANDARDC日IEC61335Premiere editionFirst edition1997-04Instrumentation nucleaire 一Appareillage danalyse par fluorescence Xen forageNuclear instrumentation -Bore-hole apparatus for X-rayfluores
15、cence analysis IEC 1997 Droits de reproduction reserves I Copyright - all rights reservedAucune partie de cette publication ne peut etre reproduite ni utiliseesous quelque forme que ce soit et par aucun procede, electroniqueou mecanique, y compos la photocopie et les microfilms, sansPaccord ecrit de Iediteur.No part of this publication may be reproduced or utilized inany form or by any means, electronic or mechanical, includingphotocopying and microfilm, without permiss