Results 71 to 80 of about 2,915 (113)

配高压断路器电磁式操作机构用半导体整流器

open access: yesGaoya dianqi, 1959
电器工厂推荐的配高压断路器电磁式操作机构用硒整流器由φ100公厘的元件构成。这种硒整流器没有接触垫圈。在整流器型号中的字母即表示整流器中没有接触垫圈,例如BC—140。对于不同电压的交流网路、不同功率的操作机构,联接电路的元件数,及操作机构合闸线圈出额定电压列于下表。 对于220伏直流操作机构的线圈由220伏三相交流网路供电但当操作机构的功率小于22千瓦特时 ...
doaj  

[Establishment and comparative analysis of femoral biomechanical equivalent model]. [PDF]

open access: yesSheng Wu Yi Xue Gong Cheng Xue Za Zhi
Shi H   +5 more
europepmc   +1 more source

[Research progress of the ULBP-NKG2D axis in autoimmune diseases]. [PDF]

open access: yesZhejiang Da Xue Xue Bao Yi Xue Ban
Ma J, Wu J, Jin Y.
europepmc   +1 more source

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