SO/CIE TS 22012:2019 Valgus ja valgustus : hooldeteguri määramine. Määramisviis = Light and lighting : maintenance factor determination. Way of working (ISO/CIE TS 22012:2019)
Technical data
URL: http://www.digar.ee/id/nlib-digar:441282
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URL: http://www.digar.ee/id/nlib-digar:441282