直流的

There are two main disadvantages in the present differential algebra equation model used in AC/DC system: one is that 'dimensional calamity' can occur with the increment of DC transmission lines

目前普遍使用的AC/DC系统的微分代数模型主要存在2大缺陷：①随着直流线路的增加可能出现"维数灾难"问题

To satisfy the demand of real-time control in brushless direct current motor, this paper proposes a design of a digital control system which consists of digital signal processor and monitor and control generated system.

为满足高性能实时测控系统的要求，设计由数字信号处理器和通用监控系统MCGS组成的应用于无刷直流电机的数字控制系统。

Advanced digital simulation is one of the most effective ways to research large HVDC/AC hybrid systems.

采用先进的数字仿真系统对大规模的交直流混合电力系统进行研究是一个有效的途径。

Then it would be embedded into the discrete cosine transform coefficients exception of direct current in digital image blocks.

该算法依赖于可信任第三方提供的时间戳以及用户的私钥和授权码生成双重水印信息，然后将其嵌入在图像分块除直流分量外的DCT系数上。

Data processing software kit can real-time gain the running status and parameter of discharger and form, display, print, all kinds of chart that is of powerful on-line monitor and analysis process function. Battery and DC capability can be seen clearly.

配套的数据处理软件具有强大的在线监控及分析处理功能，可实时获取放电仪的工作状态及参数，生成各种图表并可显示、打印，蓄电池、直流电源性能一目了然。

This thesis research the structure character of nuclear core and new direct current stream generator which has internal screw and double tubes in the integral nuclear power equipment.

本文主要根据一体化核动力装置一回路中的反应堆堆芯以及具有内螺旋双层套管的新型直流蒸汽发生器这两个设备的结构特点。

The topology of two-stage matrix converter given based on the concept of fictitious DC link of matrix converter and dual space vector modulation strategy of TSMC was studied.

在矩阵变换器虚拟直流环节的思想上，给出了双级矩阵变换器的电路拓扑，仿真研究了双级矩阵变换器的双空间矢量调制策略。

Dielectric elastomer can yield extremely large strain and elastic energy density in DC electric field, which makes it to be used as basic material of actuators for subminiature machine, even as ideal material of artificial muscle for subminiature robot in future.

电场活化聚合物在直流电场作用下会产生极大的应变和弹性能，这就使得这类材料可以用于作为微型机械中电致动器的基础材料，甚至被视为将来在机器人、特别是微型机器人中制造人造肌肉的理想材料。

Then the micro-state and transport process of carriers (hot-electron) in vivo of the switch material were studied in details using the quantum theory. It was found: in the DC bias electric field, under the certain condition of the relaxation time of the hot-electrons in the electron-electron and electron-phonon interaction process, the photoconductivity oscillation can be caused by the change of mobility in the process of optoelectronics transport, and the main causes that the output electrical pulse appears oscillation was revealed.

并从量子理论出发，研究开关体内载流子的微观状态和输运过程，在直流偏置电场作用下，体内热电子在电子—电子、电子—声子相互作用过程中，其驰豫时间及载流子寿命之间存在关系时，光电子的输运可通过迁移率变化引起光电导振荡，揭示出导致开关输出电脉冲出现振荡的根本原因。

The carrier gas is passed through the capillary where the moisture it holds is quantitatively absorbed by the phosphorous pentoxide and decomposed electrolytically into hydrogen and oxygen by the application of a D.C.

载气气流过毛细管，在这里载气气流中的湿气将被五氧化二磷定量地吸收，通过向两电极上施加直流 70V 的电压可将吸收的湿气电解成氢和氧。

I can not make it blossom and suits me

我不能让树为我开花

When temperatures are above approximately 80 °C discolouration of the raceways or rolling elements is a frequent feature.

当温度高于 80 °C 左右时，滚道或滚动元件褪色是很常见的特征。