信阳棋牌

          <dfn id='9lhtu'><optgroup id='9lhtu'></optgroup></dfn><tfoot id='9lhtu'><bdo id='9lhtu'><div id='9lhtu'></div><i id='9lhtu'><dt id='9lhtu'></dt></i></bdo></tfoot>

          <ul id='9lhtu'></ul>

            1. <form id='g51do'></form>
                <bdo id='g51do'><sup id='g51do'><div id='g51do'><bdo id='g51do'></bdo></div></sup></bdo>

                  • <small id='ndcga'></small><noframes id='ndcga'>

                  • <tfoot id='ndcga'></tfoot>

                      <legend id='ndcga'><style id='ndcga'><dir id='ndcga'><q id='ndcga'></q></dir></style></legend>
                      <i id='ndcga'><tr id='ndcga'><dt id='ndcga'><q id='ndcga'><span id='ndcga'><b id='ndcga'><form id='ndcga'><ins id='ndcga'></ins><ul id='ndcga'></ul><sub id='ndcga'></sub></form><legend id='ndcga'></legend><bdo id='ndcga'><pre id='ndcga'><center id='ndcga'></center></pre></bdo></b><th id='ndcga'></th></span></q></dt></tr></i><div id='ndcga'><tfoot id='ndcga'></tfoot><dl id='ndcga'><fieldset id='ndcga'></fieldset></dl></div>

                          <bdo id='ndcga'></bdo><ul id='ndcga'></ul>

                        1.  
                           
                          • 零地电压的去除办法和零地电压的危害及产生原因

                            [其他知识] 零地电压的去除办法和零地电压的危害及产生原因

                            2016-05-16

                            LINGDIDIANYAZAIGEGEXINGYEDEYONGHUDUIGONGDIANDEZHILIANGYETICHULEYUELAIYUEGAODEYAOQIU,CHULECHUANTONGDEGONGDIANKEXINGXING、DIANYAZHILIANGYUPINLVZHILIANGDENGHENGLIANGBIAOZHUNWAI,DUILINGDIDIANYAYETICHULEJIAOGAOYAOQIU。LINGDIDIANYASHIKUNRAOXINXILEISHEBEISHIYONGDEYIGEJIAOTUCHUWENTI,ERQIEZHIJIEYINGXIANG......

                          • 频率偏移是什么?

                            [其他知识] 频率偏移是什么?

                            2017-05-08

                            信阳棋牌PINLVPIANYI(frequency variation):ZHISHIDIANPINLVDEBIANHUACHAOGUO3HzYISHANG。ZHEIZHUYAOYOUYINGJIFADIANJIDEBUWENDINGYUNXING,HUOYOUPINLVBUWENDINGDEDIANYUANGONGDIANSUOZHI。SUOYISHIYONGWENYAQI,DUIYONGDIANSHEBEITEBIESHIDUIDIANYAYAOQIUYANGEDEGAOXINKE......

                          • 什么是电涌?

                            [其他知识] 什么是电涌?

                            2017-05-08

                            信阳棋牌DIANYONG(power surges)SHIZHI:SHUCHUDIANYAYOUXIAOZHIGAOYUEDINGZHI110%,ERQIECHIXUSHIJIANDAYIGEHUOSHUGEZHOUQI。DIANYONGZHUYAOSHIYOUYUZAIDIANWANGSHANGLIANJIEDEDAXINGDIANQISHEBEIGUANJISHI,DIANWANGYINTURANXIEZAIERCHANSHENGDEGAOYA。

                          • 高压尖脉冲是什么?

                            [其他知识] 高压尖脉冲是什么?

                            2017-05-08

                            GAOYAJIANMAICHONG(high voltage spikes)SHIZHI:FENGZHIDA6000V,CHIXUSHIJIANCONGWANFENZHIYIMIAOZHIERFENZHIYIZHOUQI(10ms)DEDIANYA。

                          • 电力线噪声是什么?

                            [其他知识] 电力线噪声是什么?

                            2017-05-08

                            信阳棋牌DIANXIANZAOSHENG(electrical line noise):ZHISHEPINGANRAO(RFI)HEDIANCIGANRAO(EFI)YIJIQITAGEZHONGGAOPINGANRAO。MADADEYUNXING、JIDIANQIDEDONGZUO、MADAKONGZHIQIDEGONGZUO、GUANGBOFASHE、WEIBOFUSHE、YIJIDIANQIFENGBAODENG,DOU......

                          捕鱼达人的技巧 棋牌购买 誉宝棋牌 瓜瓜丰城棋牌 4人牛牛