Report - IECed1.0}b.img.pdf · 1217 ©IEC:1996ҟ— 3 — CONTENTS Page FOREWORDҟ 11 INTRODUCTIONҟ 13 Clause 1 Scope and objectҟ ҟ17 2 Coordinate systemsҟ ҟ17 2.1 General rulesҟ ҟ17

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