查询词典 DC

Among them group A dendritic cell surface processes were less and cytoplasm vacuolated obviously. 2. Compared the expression of cell surface molecules of 5d, 7d ,10d,14d, we found the CD1a, CD83, CD86, HLA-DR and CD80 expression was significantly increased P.

口腔癌患者外周血单个核细胞诱导培养第5d、第7d、第10d、第14d时，细胞表面DC分子的表达情况：第7d时的DC与第5d相比，CD1a、CD83、CD86、CD80和HLA-DR表达率明显上升P 0。

The ZCS condition for lagging switches under wide load range is provided by a secondary auxiliary circuit, and an unbalanced-voltage-division flaw which inheres in ZVS half-bridges in series hybrid DC-DC converter is overcome in the proposed converter, consequently the converter is more practical.

利用副边的辅助电路在宽负载范围内实现了滞后管的零电流软开关，并克服了以前出现的ZVS半桥串联混合式直流变换器所存在的2个半桥分压不均衡的固有缺点，从而使该类拓扑更加实用。

I've played before in Davis Cup when I've had niggles and injuries in the past and I didn't really want to take a risk this time.

之前我带伤带病打过DC，这次我不想在冒险了。我喜欢和我的哥哥一起打双打一起打DC。

Ive played before in Davis Cup when Ive had niggles and injuries in the past and I didnt really want to take a risk this time.

之前我带伤带病打过DC，这次我不想在冒险了。我喜欢和我的哥哥一起打双打一起打DC。

In ships,a rectifier can be parallelled with the AC power main to provide DC power for DC load.Thus the rectifier will generate large amounts of harmonic currents in the power line.

在舰船上，可以在一个给交流负载供电的电网上挂接一个整流器，以输出直流功率给直流负载。

The converter is composed of two dualtransistorforward converter,coupled with a single high frequency transformer which has two secondaries.

三相功率因数校正电路的直流输出电压通常较高，有时高达750～800V，这就要求提高后级DC/DC变换器中开关管的电压耐量。

Through theoretic reckoning and simulating analyzing, several control strategies for shunt APF were compared and chose ip-iq arithmetic ofthe instantaneous reactive power theory control strategy as the right scheme to produce the instructing current. Based on it, some new control arithmetic was subjoined to suppress the resonance in system and balance the dc side capacitor voltage. Two topologies of main circuit were compared and chose the three-phase voltage-source converter with a split-capacitor as its main circuit structure. The numerical scales of the dc side capacitor and inductance of reactors were calculated. The high-pass filters were designed to eliminate effectively the highfrequency harmonics produced by APF.

通过理论计算和仿真分析，比较了并联型APF的几种控制策略的优点和缺点，从中选择瞬时无功理论控制策略i_p-i_q计算方式为指令电流产生的算法，并在此基础上增加了抑制系统谐振和平衡直流侧电容电压的控制；比较了并联型APF主电路的两种常见形式，从中选择了三相电压型变流器的主电路形式；算出适合该APF的直流侧电容和出线电感的参数；设计出能有效消除APF产生的高次谐波的高通滤波器。

In this paper, based on fuzzy logic theory, bringing up a subjoining fuzzy-DC control, and simulate the Tianshengqiao-Guangzhou AC/DC system, obtain the satisfying aftermath.

基于模糊逻辑推理，提出了一种附加模糊直流控制方法，并对天生桥—广州交直流互联系统进行了仿真，得到了满意的结果，表明这种方法具有一定的理论价值和实际意义。

If the netscreen-50 uses a dc power supply, see appendix b,"dc power supply" for more information.

如果的NetScreen - 50采用了直流电源供应器，见附录B，&直流电源&以获取更多信息。

This paper introduces the operation principle and a travel fault accident of variable-speed DC drives system for the car puller of car dumper system in Jiangxi Fengcheng power plant,finds and analyses the potential reason,summarize it was caused by the wrong of PLC analog output module,and proposes some suggestion about variable-speed DC drives system maintenance.

简要介绍了丰城电厂翻车机系统拨车机直流调速系统工作原理及一次拨车机行走异常故障，对各种可能故障因素进行查找分析，归纳出由于PLC模拟量输出模块故障导致拨车机异常行走的结论，并对同类直流调速系统的维护工作提出了建议。

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。