ICS21.140J22中华人民共和国国家标准GB/T33509—2017机械密封通用规范Generalspecificationformechanicalseals2017-02-28发布2017-09-01实...
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UDCP中华人民共和国国家标准~eGB/T50082-2024混凝土长期性能和耐久性能试验方法标准Standardfortestmethodsoflong-termperformanceanddurab...
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ICS25.220.99CCSA29中华人民共和国国家标准GB/T33803—2025代替GB/T33803—2017钢筋混凝土阻锈剂耐蚀应用技术规范Technicalspecificationfo...
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ICS27.180F11中华人民共和国国家标准GB/T33629—2017/IEC61400-24:2010风力发电机组雷电防护Windturbinegeneratorsystems—Lightningprotec...
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UDCpGB/T50095-2014Standardforessentialterminologyandsymbolinhydrology2014-12-02£*12015-08-01~Mt!lfl~A~~'o~1tm'ofJjX!§iti!tgBlfl~...
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