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GIS设备内部空间极为有限，工作场强高，绝缘裕度相对较小，内部缺陷极易引发绝缘故障。局部放电往往是绝缘性故障的先兆和表现形式。我公司生产的HN-PD800系列GIS局放在线监测装置，采用特高频（UHF）在线监测技术，实时监测GIS内部由于局部放电所产生的特高频电磁波信号，通过分析信号特征评估设备运行状态，能有效预防事故的发生，避免GIS的突发性故障。 系统由内置式或外置式特高频传感器组成的信号采集 ...

If you have a Spatial Snippet to share with our readers, please send us an email. We’ll start off this week with the news ...

Customer stories Events & webinars Ebooks & reports Business insights GitHub Skills ...

Pro Spatial With SQL Server 2012 by Aitchison, Alastair Publication date 2012 Topics SQL server, Geography -- Statistical methods -- Data processing, Spatial analysis (Statistics), Geographic ...

Abstract: Over the past decade, geospatial data has witnessed significant expansion, coupled with swift technological advancements. However, its adoption in various industries has been partially ...

Stonebraker essentially abandoned Postgres in the mid-1990s. But instead of fading into obscurity, the codebase was salvaged ...

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Choose a SQL Server trial, edition, tool, or connector that best meets your data and workload needs. Accelerate AI development with SQL Server 2025, the AI-ready enterprise database with best-in-class ...

继华为开发者大会（HDC2026）宣布HarmonyOS6终端设备数量已超过6600万台之后，7月2日，华为终端BGCEO何刚再次宣布HarmonyOS6终端设备数突破7000万。市场数据同样印证了这一趋势，2026年第一季度，鸿蒙在中国智能手机 ...