好看的历史书籍推荐,重生之毒妃 梅果 小说,旷世神医 11资讯中心-¾l¿å®ç”늼†åŽ? 直销ç”?sh¨´)è¯?0551-64203668 <![CDATA[安徽ç”늼†è¡Œä¸šæ‹Ÿæ ¸å‡?个电(sh¨´)力项目]]> 2018-03-11 17:15:03 <![CDATA[引è“vŠ™¡å¥—ç”늼†ä¸­é“œä¸å‘黑的原因]]> 2018-03-11 17:10:21 <![CDATA[å•èŠ¯é’¢ä¸é“ è£…ç”늼†]]> 2018-03-11 17:05:45 <![CDATA[工厂é…电(sh¨´)导线载æµé€‰æ‹©]]> 2018-03-07 20:51:11 <![CDATA[2020òq´ä¸­å›½ç”µ(sh¨´)¾U¿ç”µ(sh¨´)¾~†äñ”值或­‘?.6万亿元]]> 2018-03-07 20:48:17 <![CDATA[高压å•èŠ¯ç”늼†æŽ¥åœ°çŸ¥è¯†]]> 2018-03-07 20:46:08 <![CDATA[中国ç”늼†ä»äh ¼å会æˆç«‹]]> 2018-03-07 20:42:44 <![CDATA[我国é…电(sh¨´)¾|‘å‘展状况åŠæœªæ¥ç”늽‘å‘展规划]]> 2018-03-07 20:34:52 <![CDATA[导线截颿U¯ä¸Žè½½æµé‡çš„计算]]> =0.125 I ~0.2 I(mm2) S-----铜导¾U¿æˆªé¢ç§¯(mm2) I-----è´Ÿè²ç”‰|µ(A) ã€€ã€€ä¸‰ã€åŠŸçŽ‡è®¡½Ž—一般负è½?也å¯ä»¥æˆä¸ºç”¨ç”?sh¨´)器åQŒå¦‚点ç¯ã€å†°½ŽÞq­‰½{?分äؓ两ç§åQŒä¸€¿Uå¼ç”?sh¨´)阻性负载,一¿U是甉|„Ÿæ€§è´Ÿè½½ã€‚对于电(sh¨´)é˜ÀL€§è´Ÿè½½çš„计算公å¼åQšP=UI 对于日光ç¯è´Ÿè½½çš„计算公å¼åQšP=UIcosÑ„åQŒå…¶ä¸­æ—¥å…‰ç¯è´Ÿè²çš„功率因数cosÑ„=0.5ã€?ä¸åŒç”‰|„Ÿæ€§è´Ÿè½½åŠŸçŽ‡å› æ•îC¸åŒï¼Œ¾lŸä¸€è®¡ç®—家庭用电(sh¨´)器时å¯ä»¥ž®†åŠŸçŽ‡å› æ•°cosÑ„å?.8。也ž®±æ˜¯è¯´å¦‚果一个家庭所有用ç”?sh¨´)器加上æ€ÕdŠŸçŽ‡äØ“6000瓦,则最大电(sh¨´)‹¹æ˜¯ I=P/UcosÑ„=6000/220*0.8=34(A) 但是åQŒä¸€èˆ¬æƒ…况下åQŒå®¶é‡Œçš„ç”?sh¨´)器ä¸å¯èƒ½åŒ]]> 2018-03-07 09:02:49 <![CDATA[¾l¿å®ç”늼†å•å¯¼å’ŒåŒå¯¼çš„区别]]> 2018-03-07 09:00:12 <![CDATA[ç”늼†ä¸Žå…‰¾~†å„自存在的优势]]> 2018-03-07 08:55:12 <![CDATA[ç”늺¿ç”늼†çš„检‹¹‹é¡¹ç›®åŠæ–ÒŽ(gu¨©)³•]]> 2018-03-07 08:53:12 <![CDATA[ç”늺¿ç”늼†å·¥ä¸šä¸­å¸¸ç”¨çš„Š™¡èƒ¶å“ç§]]> 2018-03-07 08:48:09 <![CDATA[高压ç”늼†å’Œæ™®é€šä½ŽåŽ‹ç”µ(sh¨´)¾~†çš„区别]]> 2018-03-06 20:29:19 <![CDATA[YJVå’ŒVVç”?sh¨´)力ç”늼†çš„区别]]> 2018-03-06 20:28:17 <![CDATA[ç”늺¿ç”늼†é˜²å†»]]> 2018-02-04 18:03:42 <![CDATA[ç”?sh¨´)力ç”늼†å’ŒæŽ§åˆ¶ç”?sh¨´)¾~†çš„区别]]> 2018-02-05 21:45:56 <![CDATA[WDZN-YJV环ä¿åž‹è€ç«ç”늼†]]> 2018-02-04 18:40:43 <![CDATA[æˆïL”¨å…‰ä¼ç”늼†çš„绋¹Žæ€§é€‰æ‹©ä¸Žæ•·è®¾æ–¹å¼]]> 2018-02-03 13:42:38 <![CDATA[冬季ç”늺¿ç”늼†˜q输安装的注æ„事™å¹]]> 2018-02-04 18:37:17 <![CDATA[é“åˆé‡‘电(sh¨´)¾~†çš„优缺点]]> 2018-02-05 21:05:17 <![CDATA[环ä¿ç”늼†]]> 2018-02-07 19:26:00 <![CDATA[风电(sh¨´)柔性电(sh¨´)¾~†çš„性能è¦æ±‚]]> 2018-02-06 10:08:39 <![CDATA[WDZ-BYJ-105低烟无å¤çŽ¯ä¿ç”늺¿]]> 2018-02-07 19:27:21 <![CDATA[安徽ç”늺¿ç”늼†å•†ä¼šè‡´åŠ›è¡Œä¸šå¥åº·å‘展]]> 2018-03-05 19:46:49 <![CDATA[é“åˆé‡‘电(sh¨´)¾~†å¯¹æ¯”普通电(sh¨´)¾~†çš„优势分æž]]> 2018-03-05 19:53:25 <![CDATA[½Ž€å•çœåŠ›çš„ç”?sh¨´)力ç”늼†æ•¯‚®¾æ–½å·¥æ–Ò?gu¨©)³•]]> 2018-01-30 19:59:31 <![CDATA[热电(sh¨´)å¶åŠå…¶è¡¥å¿å¯¼¾U¿çš„选型与ä‹É用]]> 2018-02-03 13:47:11 <![CDATA[WDZN-YJV低烟无å¤è€ç«ç”늼†]]> 2018-02-01 21:56:21 <![CDATA[¾l¿å®ç”늺¿BVR与BV¾U¿çš„区别]]> 2018-01-30 16:37:38