Results 51 to 60 of about 3,635 (108)

[How I treat vasovagal syncope in children]. [PDF]

open access: yesZhongguo Dang Dai Er Ke Za Zhi
Zou RM, Wang C.
europepmc   +1 more source

110千伏SF6全封闭组合电器中的SF6磁吹避雷器研制成功

open access: yesGaoya dianqi, 1972
西安高压电器研究所和西安高压电瓷研究所共同合作研制成功了一种供110千伏SF6全封闭组合电器用的SF6磁吹避雷器。这种避雷器的特点是本体放在一个充有一个表压的SF6气体的密闭的金属容器内。本体由串联间隙、阀片和保证串联间隙电压分布均匀的电阻、电容组合而成。单个火花间隙的灭弧电压为6千伏,主间隙由一对铜钨电极组成 ...
doaj  

[Extracellular matrix materials and tissue regeneration and repair]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Zhao L, Xie H.
europepmc   +1 more source

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