查询词典 DC

In the proposed device to remedy the defect that overhigh withstand voltage of thyristors used in converter are needed due to the overhigh DC link voltage, a method to control DC link voltage is put forward, that is, a special control logic for full-controllable switching elements is designed to make them equivalent to half-controllable switching elements which are naturally turned on and turned off by triggering, then connecting such a half-controllable switching element in series with DC link the defect of overhigh DC link voltage is effectively solved.

为了克服该装置直流母线电压过高，因而对逆变器开关管耐压要求过高的缺点，提出一种对直流母线电压进行控制的方法。对全控型开关器件设计一种特殊的控制逻辑，使其等效为一个自然导通、触发关断的半控型开关器件，将该半控型开关串联在直流母线上，有效解决了直流母线电压过高的问题。

These topologies, combining advantages of single switch and dual switch forward DC/DC converters, are obtained by applying several classical reset schemes to dual switch forward DC/DC converter.

这一系列变换电路是将单管正激变换电路的几种典型的复位方式应用到双管正激变换电路中得到的。

The appearance of brushless DC motor brought the development of EPS a new opportunity. BLDCM does not only possess almost all the advantages of a DC motor, but also has a series unique advantage. The way of taking the place of DC motor by a permanent magnet coreless brushless DC motor gives a totally new method for the development of EPS in the future.

无刷直流电机的出现为电动助力转向的发展带来了新的机遇，它不仅具有几乎直流电机的全部优点，同时还具有一系列无可比拟的优势，特别是采用无铁心永磁无刷直流电机代替普通直流电机，不失为今后电动助力转向发展的一种全新思路。

LPS stimulation can advance the maturation of DCs, which showed more typical morphology, expressed higher cell special phenotyes, has more powerful activation of proliferation of homogenic lymphocyte and secreted higher levels of cytokine. The character had no obvious dose dependence on LPS. It indicated that LPS can

说明在DC诱导培养的后期，LPS可以进一步促进DC的成熟，由此可以进一步推断DC疫苗经体外诱导培养后注入伴有肠源性内毒素血症的肝病患者体内其疗效将会更加明显，这为DC疫苗用于内毒素血症患者的免疫治疗提供了实验依据。

Considering the switch of the DC control mode, a new load margin solution is presental that is to solve the maximum load incremental under each DC control mode separately and add them together. The method is characterized by its convenience of considering varialle constraints of DC system and adjustment of DC operation mode.

交直流系统直流控制方式会发生调整，提出分段求解负荷裕度的方法，即分别用内点法求解系统不同直流控制方式的最大负荷增量再求和，该方法能方便考虑直流变量约束及运行方式的调整。

Of CBMC can be purified by Mini-MACS as CD34〓 stem cells. B. The number of CD34〓 stem cells can expand to 40.24±9. 86 fold after 14 days. C. No matter in the expression of CD1a, CD80, CD86, and HLA-DR, or in the function of stimulating xenogenous lymphocyte proliferation, there was no difference between CD34+ stem cell DCs or monocyte DCs. D. The percentage of CD3〓CD56〓 cells is the same in CIK cells co-culture with DCs transfected with SKOV3 RNA, CIK cells co-culture with DCs, and CIK cells. E. The expansion rate of CIK cells can be accelerated by co-culturing with loaded or unloaded DCs. However, the expansion rate between loaded or unloaded group is the same. F. The strongest cytotoxicity against SKOV3 cell line was achieved by CIK cells co-cultured with DCs loaded with SKOV3 RNA.

结果：1、Mini-MACS分选系统可自CBMC中提取0.78±0.31%的CD34〓细胞；2、体外培养14天后可获得原始CD34〓细胞量40.24±9.86倍的细胞；3、不论在CD1a、CD80、CD86及HLA-DR的表达上，或是刺激异体淋巴细胞增生的功能上，脐带血CD34〓细胞与单核细胞来源的DC都没有差别；4、CIK细胞中CD3〓CD56〓双阳性的表达率在与RNA转染DC共培养的CIK细胞组、与DC共培养的CIK细胞组及单纯CIK细胞组3组间比较无差异；5、脐带血CIK细胞增殖显著，培养14天时可扩增18.18±5.59倍，培养21天时可扩增35.02±6.30倍；5、与未转染或转染DC共培养的CIK细胞在培养第14天后增殖速率大于单纯CIK细胞。

To meet with the DC feeder cable without ground wiring, different DC current method was proposed to solve the problem of DC leakage curren on-line detection of the cable. The paper still studied in primary the feasibility of low frequency superposition method to detect the DC feeder cable. It not only explained the working theory of the system, but also presented some problems to be solved.

针对直流馈出电缆无接地线，提出采用差量直流电流法解决了电缆直流泄漏电流的在线检测问题，并初步研究了低频叠加法监测直流馈出电缆的可行性，给出了工作原理及还需解决的问题。

Digital Language nuclear phase meter, intelligent dielectric loss test, instrument megger, frequency series resonance test device, grounding resistance tester, transformer load switch tester, the nuclear-phase high-pressure device, vacuum oil filter, clamp grounding resistance instrument, stray current detector, transformer features an integrated tester, cable fault tester, DC resistance tester, digital relay protection tester, automatic transformation ratio tester, relay protection tester, vacuum tester, Loop resistance tester, wireless high-pressure phase of nuclear device, active transformer capacity tester, insulation oil dielectric strength tester, high voltage switch mechanical properties tester, intelligent switching characteristics tester, light-up-flow devices, wireless instrument of nuclear phase, oxidation Zinc arrester tester, high voltage test transformer, DC high-voltage generator, lightning counter checkers, inductive load DC resistance tester, dielectric strength of insulating oil automatic tester, relay protection test chamber, multi-function test bed, IF DC - Generators

数显语言核相仪，智能化介质损耗测试，仪兆欧表，变频串联谐振试验装置，接地电阻测试仪，变压器有载开关测试仪，高压核相仪，真空滤油机，钳形接地电阻仪，杂散电流测定仪，互感器特性综合测试仪，电缆故障测试仪，直流电阻测试仪，微机继电保护测试仪，全自动变比测试仪，继电保护测试仪，真空度测试仪，回路电阻测试仪，高压无线核相仪，有源变压器容量测试仪，绝缘油介电强度测定仪，高压开关机械特性测试仪，智能开关特性测试仪，轻型升流器，无线核相仪，氧化锌避雷器测试仪，高压试验变压器，直流高压发生器，雷击计数器校验器，感性负载直流电阻测试仪，绝缘油介电强度全自动测试仪，继电保护试验箱，多功能测试台，中频直流发生器

Professional production of various types of micro motor, micro DC motor, brushless DC motor, micro-speed DC motors, DC generators and three-phase alternator.

专业生产各种类型微特电机、微型直流电动机、直流无刷电动机、微型直流稳速电动机、直流发电机和三相交流发电机。

DC motor complex large-scale three-phase power transformer deep-trough three-phase asynchronous motor DC motor DC motor single-phase squirrel-cage induction motor.Three-phase commutator motors, single-phase motor power sub-phase squirrel-cage three-phase asynchronous electric double mine explosion-proof motor with squirrel-cage three-phase asynchronous motor rotor cup AC servo motor drives three-phase asynchronous motor principle of rotating magnetic field Generation and transmission of three-phase induction motor winding three-phase stepper motor 165mm Three-phase three-phase synchronous motor stepping motor JFB power generator rotor rectifier type AC synchronous motor DC servo motor three-phase current rotating magnetic field of teaching instrument Wound Three-phase alternator motor 160 rats of three-phase permanent magnet generator cage induction motor Synchro Motor medium-sized three-phase power transformer

直流复励电动机大型三相电力变压器三相异步深槽式电动机直流电动机直流电机单相异步鼠笼式电动机三相整流子电动机单相电动机电源分相器三相异步双槽鼠笼电机矿用防爆电动机三相异步鼠笼式电动机杯形转子交流伺服电动机三相异步电动机调速原理旋转磁场的产生与变速三相绕线式异步电动机 165mm三相步进电机三相同步电动机 JFB型硅整流发电机转子供电交流同步电机直流伺服电动机三相电流旋转磁场示教仪绕线式电动机三相交流发电机 160型永磁发电机三相鼠笼异步电动机自整角电机中型三相电力变压器

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。