...。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
Inside a DC-8 aircraft, there is a fully-equipped teaching hospital with television studio and classroom.
在DC-8飞机内,有一所设备齐全的教学医院,有电视演播室和教室。
If the bill makes its way through Washington, DC, after years of deliberation and lobbying, that could further dent Blackstone's profits and share price.
如果该议案经过数年的审议和游说之后在华盛顿获得通过的话,那有可能进一步削弱黑石集团的利润和股价。
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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