查询词典 DC

A DC bias of approximately 1.2V is present at this pin.A DC blocking capacitor is needed if the signal has a different DC level.

阿约1.2V的直流偏置在这个pin.A直流阻挡电容器，是目前需要的信号，如果有不同的直流电平。

The control method of maximal power point tracking is adopted, so that the energy of sun or wind is inverted into electrical potential energy efficiently to drive photovoltaic pump. The device contains DC-DC and DC-AC two parts.

该电源可选择太阳能电池阵列、蓄电池或风能发现整流输出直流电压作为输入，通过MPPT控制方法实现最大功率点跟踪，从而高效地将太阳能或风能转化为电能来拖动水泵。

For the case of PV-TW system without window-without heat storage-with/without DC fan-with periodically operating air vents and that with window-with heat storage-without DC fan-with periodically operating air vents, the system"s model is improved and expanded, and then the simulation results are compared with experimental results to validate the new model, while the effect of DC fan and window on system"s performance are further studied.

针对无窗户无蓄热有无直流风机风口按时开关工况和有窗户有蓄热无直流风机风口按时开关工况，对PV-Trombe墙系统模型进行了改进和拓展，并将模拟结果与实验结果对比，验证了改进和拓展后的模型的合理性，并进一步研究了直流风机和窗户对PV-Trombe墙系统性能的影响。

The fly-back topology is adopted for DC/DC boost stage for simplicity. Moreover, full-bridge topology is used for DC/AC stage to give a low frequency square wave power to HID lamp avoid the acoustic resonance.

直流/直流升压级采用电路简单之返驰式转换器；直流/交流级则利用全桥式转换器以提供低频方波电能并藉此避免音频共振。

Pole and slot and indicates the rule followed, depending on the structure features and performance characteristic of DC motor, and design 240w brush less DC motor based on armature reaction, and analyzes detailed Hoer position sensor and the control and drive of rush less DC motor.

而且针对直流电动机结构特点和工作性能，在电枢反应理论基础上设计出功率为240w的无刷直流电动机，并对霍尔位置传感器和无刷电动机的控制及驱动做了详细的分析。

When section size of crystalline pillar is less than dc, the pillar collapses and fuses; while the section size is larger than dc, it does not happen. And the value of dc increases lineally as the temperature rises.

处于临界尺寸的纳米晶柱在退火过程中，有可能发生上述熔化一重结晶过程，亦有可能通过表面原子扩散迁移使表面结构重组，形成同样由{111}{100}面围成的多面体。

Simulation results show that by means of utilizing super conductors the power output capability of DC system can be effectively improved, the service life of DC system can be elongated, thus both reliability and economy of DC system can be improved.

仿真结果表明，该方案通过采用超级电容器，能够有效提高直流系统的功率输出能力，延长直流系统的使用寿命和改善其技术经济性，从而提升直流系统的可靠性和经济性。

Above all by hand in dc network to the coupling between concerns and be changed stream implement changeover equation, derivation gives rectangular coordinates to fasten matrix of the Jacobi that makes dc system, Hessian, the means that offers section to seek solution in the light of the change that makes dc system control fashion next begs solution voltage to stabilize the usable transmission ability below tie condition.

首先由交直流网络间的耦合关系和换流器转换方程，推导出直角坐标系交直流系统的Jacobi、Hessian矩阵，然后针对交直流系统控制方式的改变提出分段求解的方法求解电压稳定约束条件下的可用传输能力。

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The scheme makes the DC side of unisolated single PWM rectifier as 350V DC lines. Charger and discharger modules connect to the DC lines. Use this method to charging and discharging single Li-ion battery.

方案将不隔离单相PWM整流器直流侧设计为350V直流母线，通过它与充电模块、放电模块的连接，实现对单体锂离子电池的充放电。

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。