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你对功率因数有哪些误解？
最近有做逆变器的客户咨询功率因数测量，客户想了解逆变器的功率因数应该是在怎么样的负载条件下测量的，阻性？容性？还是感性？其实里边存在一个很大的理解误区，忽视这种误区会导致逆变器的生产厂家和使用厂家出现比较严重的分歧。
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a compiler in java that parses and creates lexer analyzer
a compiler in java that parses and creates lexer analyzer
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This javascript creates Dreamweaver-like textareas.
This javascript creates Dreamweaver-like textareas.
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This code creates a 8 bit full multiplier.
This code creates a 8 bit full multiplier.
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Creates and displays a Delaunay Triangulation (DT) or a Voronoi Diagram (VoD)
Creates and displays a Delaunay Triangulation (DT) or a Voronoi Diagram (VoD)
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该类支持哪些接口；2． 完成任务需要哪些对象；3． 如何使用该类的对象；4． 是否可以直接实例化类；5． 接口有哪些方法和属性；6． 是否有其它类也支持该接口；7． 对象间的关系
该类支持哪些接口；2． 完成任务需要哪些对象；3． 如何使用该类的对象；4． 是否可以直接实例化类；5． 接口有哪些方法和属性；6． 是否有其它类也支持该接口；7． 对象间的关系
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This a sample JSP which creates an XML definition for a PDF file.
This a sample JSP which creates an XML definition for a PDF file.
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Program in FoxPro that creates a database and a management interface to the database. Similary to a
Program in FoxPro that creates a database and a management interface to the database.
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This paper introduces a software visualization system that: creates animations of programs without t
This paper introduces a software visualization system that: creates animations of programs without the
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This example creates a 3D fly-over of the city of Boston
This example creates a 3D fly-over of the city of Boston