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Opendwg库帮助文件 OpenDWG™ Toolkit Reference VERSION 2.0 Copyright © 1999 OpenDWG Alliance. All rights reserved. Information in these materials is furnished for informational use only, is subject to change without notice and does not represent a commitment on the part of OpenDWG Alliance. OpenDWG Alliance assumes no responsibility or liability for any errors or inaccuracies that may appear in these materials. Use these materials at your own risk.