Dianci bileiqi, 1989 无间隙氧化锌避雷器已被用于高压直流系统.加在高压直流避雷器上的电压不是简单的正弦波,所以泄漏电流中含有高频成分.采用5kV/500kW桥阀对比例1/25的阀用避雷器节进行了能量吸收试验.测定了氧化锌阀片的高频能量吸收特性 ...
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[Research advances in three-dimensional bioprinted wound dressings]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za ZhiShi C, Lei C, He L, Liao D.
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[Research progress in the application of molecular imprinting technology in catalysis]. [PDF]
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[Mechanistic research progress on radiotherapy resistance of cancer stem cells]. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanLuo Z, Yu M, Li J, Zhang S, Shen T.
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[Research progress on enhancing osseointegration properties of polyetheretherketone implants through various modification methods]. [PDF]
Sheng Wu Yi Xue Gong Cheng Xue Za ZhiLiu S, Feng X, Chen C.
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[Research progress in mesenchymal stem cells modified by Heme oxygenase 1]. [PDF]
Zhongguo Xiu Fu Chong Jian Wai Ke Za Zhi, 2019 Sun D, Song H, Shen Z.
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[Clinical diagnosis and treatment strategies for malignant complex wounds]. [PDF]
Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za ZhiXia CD, Lei DD.
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Progress in research and development of biodegradable metallic vascular stents. [PDF]
Zhong Nan Da Xue Xue Bao Yi Xue BanYang Y +6 more
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[<i>Lycium barbarum</i> Polysaccharide Improves Reproductive Injury in Female Rats Exposed to High-Altitude Hypoxic Environment: Investigation of the Mechanisms Involved]. [PDF]
Sichuan Da Xue Xue Bao Yi Xue BanZhang X +5 more
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Dianci bileiqi, 1989 瑞士BBC公司增添了一种新的MWM型金属氧化物避雷器系列,电压等级直至800kV.避雷器的特点是保护水平很低,并可以用于特殊的条件,例如操作过电压保护、多重雷情况等.因其通流容量很高,这种避雷器有很大的保护范围、耐老化、不要很大的维护工作量.氧化锌阀片有很高的非线性,因此在工作电压下只通过很小的电流,1mA左右.避雷器用于额定电压不大于800kV、频率至60Hz、额定电流20kA的电网.通过避雷器极限电流150kA,容量16kJ/kV,装有（短路电流50kA时的）压力释放装置 ...
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