...。结合电阻和阻抗称为电抗。让我解释一下。 纯电阻的负载,如加热元件,没有电抗。电压和电流一致,没有超前或落后于阶段。欧姆电阻是相同的直流(DC)和交流电(AC)。功率因数(pf)是1,提供最准确计量的电力消耗。
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...瘤组织DNA疫苗到肿瘤多肽疫苗,由癌基因与抑癌基因突变蛋白的多肽特异性抗原的问世,推动了靶向肿瘤疫苗的研究,树突状细胞(DC)是目前发现功能最强的,唯一能刺激静息T细胞的抗原提呈的细胞,已进入临床试验,且取得了令人鼓舞的效果。
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西门子日前正在与欧洲的合作伙伴一道研究,除了通常的交流电(AC)之外,直流电(DC)是否能够用于以及如何用于楼宇内部。在某些应用中,如在办公楼内,增加直流电的使用可以节省.
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The DC withstand voltage is more than 2.5 kV.
电缆的直流耐压大于 2 .5kV。
参考来源 - 2000安高温超导输电电缆的研制TL converters are suited to the medium and high power dc-dc conversions of high input/output voltages.
三电平变换器可以广泛应用于高输入电压/输出电压、中大功率的直流变换场合。
参考来源 - 期刊学术社区·2,447,543篇论文数据,部分数据来源于NoteExpress
同义词: District of Columbia D.C.
同义词: direct current
以上来源于: WordNet
N-UNCOUNT DC is used to refer to an electric current that always flows in the same direction. DC is an abbreviation for . 直流电
The address is 2025 M Street, NW, Washington, DC, 20036.
地址是华盛顿哥伦比亚特区,华盛顿西北,M街2025号,邮编20036。
Details have been given of a near miss between two passenger jets over Washington DC earlier this week.
有关本周早些时候两架客机在华盛顿特区上空险些相撞的细节现已公布。
Join a small group bike tour for an evening of exploration in the heart of Washington DC.
参加一个小型的团体自行车之旅,探索华盛顿特区的核心地带。
We would like to hear from you. Write to us at Special English, Voice of America,Washington,DC,two-zero-two-three-seven,USA.
VOA: special.2009.02.03
It took place in a restricted driving area at the University of Maryland, near Washington,DC.
VOA: special.2009.11.03
Listen as Wilhelmi describes why he made these special boots in porcelain: "I'm William Wilhelmi and I made the porcelain cowboy boots at the Smithsonian in Washington DC.
VOA: special.2009.09.09
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