Results 61 to 70 of about 1,909 (101)

国外超高压输电的绝缘配合

open access: yesGaoya dianqi, 1975
绝缘配合,就是对电网中各种输变电设备绝缘及间隙的绝缘强度和保护水平的选择。这种选择,是考虑电网中可能出现的各种过电压水平、保护装置特性、在经济和安全许可的条件下,定出输变电设备合理的耐受电压值。
doaj  

[Treatment strategies for immature permanent teeth under general anesthesia]. [PDF]

open access: yesHua Xi Kou Qiang Yi Xue Za Zhi
Li Y, Feng X, Jia R, Wang Y, Shang J.
europepmc   +1 more source

[Three-dimensional finite element analysis of digital wire loop space maintainers for missing deciduous teeth]. [PDF]

open access: yesBeijing Da Xue Xue Bao Yi Xue Ban
Ma L   +6 more
europepmc   +1 more source

[Posterior minimally invasive approach for treatment of posterior wall acetabular fractures]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Li W   +9 more
europepmc   +1 more source

[Clinical study on reduction of posterior malleolar fractures via modified Rammelt transfibular approach]. [PDF]

open access: yesZhongguo Xiu Fu Chong Jian Wai Ke Za Zhi
Ji S   +7 more
europepmc   +1 more source

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