题名 | 立井井壁裂纹破裂原因及预防 |
链接 | http://www.cnki.net/kcms/detail/detail.aspx?dbcode=CPFD&dbName=CPFD2009&FileName=ZGYJ198210001022&v=MjkzNTh%2BsZUquJ9m4m8RKOxTtsskXxw/KtJksrEW082vj0Vl6w0OE0jMFxSeNgk6DOSoGzQ=&uid=WEEvREcwSlJHSldRa1FhdHhxTTJ2dVhzVGxlcEwxMlF5KzBLYWtZaS9VaWVQQ3hKQTVOSWlaVlNxOWdwZmg0VkNRPT0=$9A4hF_YAuvQ5obgVAqNKPCYcEjKensW4IQMovwHtwkF4VYPoHbKxJw!! |
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