<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[RSS Feed]]></title><description><![CDATA[RSS Feed]]></description><link>http://direct.ecency.com</link><image><url>http://direct.ecency.com/logo512.png</url><title>RSS Feed</title><link>http://direct.ecency.com</link></image><generator>RSS for Node</generator><lastBuildDate>Thu, 16 Apr 2026 15:56:57 GMT</lastBuildDate><atom:link href="http://direct.ecency.com/@countryroad/rss" rel="self" type="application/rss+xml"/><item><title><![CDATA[火锅里煮出的温暖]]></title><description><![CDATA[绿蚁新醅酒， 红泥小火炉。 晚来天欲雪， 能饮一杯无？ ----------------白居易 《问刘十九》]]></description><link>http://direct.ecency.com/food/@countryroad/6m9uaz</link><guid isPermaLink="true">http://direct.ecency.com/food/@countryroad/6m9uaz</guid><category><![CDATA[food]]></category><dc:creator><![CDATA[countryroad]]></dc:creator><pubDate>Thu, 26 Apr 2018 06:46:03 GMT</pubDate><enclosure url="https://images.ecency.com/p/Zskj9C56UondJxcjVaienfhVaNb7LJVWG6e787ga1WPEPBR8kVX7KfR3SoMrMUmCrdc88kFjxQCjgEqHjuwfVjGiyYbFcu5frrAseg1JTVSuNmh2EQCN?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[China wants to be a polar power]]></title><description><![CDATA[WHEN the occupants of “Snowpanda House” in Ahtari zoo, Finland, were first allowed to play in the open air in mid-February, they bounded out and rolled in the white stuff. Xi Jinping, China’s president,]]></description><link>http://direct.ecency.com/cn/@countryroad/china-wants-to-be-a-polar-power</link><guid isPermaLink="true">http://direct.ecency.com/cn/@countryroad/china-wants-to-be-a-polar-power</guid><category><![CDATA[cn]]></category><dc:creator><![CDATA[countryroad]]></dc:creator><pubDate>Wed, 25 Apr 2018 05:58:24 GMT</pubDate><enclosure url="https://images.ecency.com/p/3W72119s5BjWPGGUiZ9pqnZoj8JHYxCCp9dtn2QVeuUtxZNzjzcBmZhVToBQVadzXwknAws3SUTgCvYcPuim1DrCnqLAN4NzS7HHwSmFgajWHLpwGPEuZG?format=match&amp;mode=fit" length="0" type="false"/></item><item><title><![CDATA[经典！变频器内部主电路详解]]></title><description><![CDATA[经典！变频器内部主电路详解~ 一、内部主电路结构 采用“交-直-交”结构的低压变频器，其内部主电路由整流和逆变两大部分组成，如图1所示。从R、S、T端输入的三相交流电，经三相整流桥（由二极管D1～D6构成）整流成直流电，电压为UD。电容器C1和C2是滤波电容器。6个IGBT管（绝缘栅双极性晶体管）V1～V6构成三相逆变桥，把直流电逆变成频率和电压任意可调的三相交流电。 图1 变频器内部主电路 二、均压电阻和限流电阻]]></description><link>http://direct.ecency.com/cn/@countryroad/52kjg2</link><guid isPermaLink="true">http://direct.ecency.com/cn/@countryroad/52kjg2</guid><category><![CDATA[cn]]></category><dc:creator><![CDATA[countryroad]]></dc:creator><pubDate>Tue, 24 Apr 2018 09:15:39 GMT</pubDate><enclosure url="https://images.ecency.com/p/2N61tyyncFaFnNFKLegVvzmsrMAExSDXzsHdqwaiSwhfKjFoowiRBm2iQo5Qw1zYop9pxQkM6FVC33hWewsEaRjuaR24rjDAGkcYLprvbKQKkwVDpvzuPE2FvExgsNQQh4Jjz6zFEdTk?format=match&amp;mode=fit" length="0" type="false"/></item></channel></rss>