Results 71 to 80 of about 393 (101)

绝缘子串的电压分布的分析计算

open access: yesGaoya dianqi, 1965
随着电力系统的容量日益扩大,输电电压日益提高,所需绝缘子电压等级也随之提高。但目前单个电瓷绝缘子电压一般都在110千伏以下(指棒式、盘形及针式绝缘子),更高电压等级如330千伏、500千伏及以上就需由多个缘绝子串联组成悬式绝缘子链或支持绝缘子柱。由于绝缘子链(或柱 ...
doaj  

各国支柱绝缘子标准比较 附视频

open access: yesDianci bileiqi, 1979
本文介绍各国支柱绝缘子产品结构发展情况,对各国支柱绝缘子标准中规定的环境条件、弯曲强度等级、瓷质水平、安装尺寸等进行了对比.
doaj  

[Research progress of resorption of lumbar disc herniation]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2022
Liu D   +5 more
europepmc   +1 more source

One case of Rosai-Dorfman disease misdiagnosed as facial inflammation. [PDF]

open access: yesHua Xi Kou Qiang Yi Xue Za Zhi
Chen Y, Ma W, Nie G, Li M, Cui Q.
europepmc   +1 more source

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