天气预报15天查询> 其他> 静电屏蔽和静电平衡有什么区别

静电屏蔽和静电平衡有什么区别

更新时间: 2020-10-21 00:00:00     

静电屏蔽和静电平衡的区别:

静电屏蔽是指金属导体的外壳对它的内部起到“保护”作用,使它的内部不受外部电场的影响;而静电平衡是指导体中,包括

表面,没有电荷定向移动的状态叫做静电平衡状态。静电平衡和静电屏蔽是两个完全不同的概念,静电屏蔽是金属导体内部

不受外部电场的影响,静电平衡是导体中没有定向移动的电荷。

关键词: 静电屏蔽 静电 平衡 什么 区别

如有意见、反馈、侵权或投诉等情况,请联系:

电话:
邮箱:

我们将会在48小时内给与处理!

版权所有 Copyright ? 2009-2020 tianqiyubao3.com

页面:/news/view-310441/ | 耗时:0.6913 s | 内存:1.89 MB | 查询:4 | 缓存读取:4 写入:0 | 加载文件:23
select * from tbl_Articles WHERE ArticleID=310441 LIMIT 0,1
select * from tbl_Articles_data WHERE ArticleID=310441 LIMIT 0,1
select * from tbl_Articles_sphinx where id=310441 LIMIT 0,1
SELECT ArticleID,Title FROM tbl_Articles WHERE ArticleID IN(4173328,4173154,4171466,4165684,4165651,4159389,4159386,4152713,4152712,4152711,4152709,4152708,4152680,4152671,4152601,4152599,4152596,4152592,4152583,4152576,4152575,4152569,4152557,4152556,4152547,4152546,4152545,4152541,4152540,4152525) ORDER BY field (ArticleID,4173328,4173154,4171466,4165684,4165651,4159389,4159386,4152713,4152712,4152711,4152709,4152708,4152680,4152671,4152601,4152599,4152596,4152592,4152583,4152576,4152575,4152569,4152557,4152556,4152547,4152546,4152545,4152541,4152540,4152525)