And then the paper introduces the design of power amplifier and DC regulated power supply.
论文重点介绍了功率放大器和直流稳压电源的设计。

An adaptive video watermarking algorithm based on the DC Component is proposed in this paper.
提出了一种基于直流分量的自适应视频水印算法。

Analysis of the Nutritional Components of Sonchus brachyotus DC. And Allium macrostemon Bunge
苣荬菜, 小根蒜营养成分分析

Reformation of analogue DC drive system of Cold Strip Plant of Xinyu Iron and Steel Co., Ltd.
新钢冷带厂模拟直流传动系统的改造。

Analytical Calculation of Magnetic Field and Electrical Magnetic Torque in Brushless DC Motor
无刷直流电动机气隙磁场及电磁转矩的分析计算

PWM microelectronic c ontrol technique and AC DC AC DC invert technique with MOSFET half bri.
具有短接限流，限时衰减和恒流，恒压相结合的特点。

Square wave AC, or switched DC, power sources are particularly attractive for welding aluminium.
方波交流，直流电源焊接铝特别具有吸引力。

Research on DC Positive Corona Discharge Characteristics of Conductors and Its Affecting Factors.
直流正极性下导线电晕放电特性及影响因素的研究

By applying the DC bias voltage to substrate, the intensity of emission spectroscopy was analyzed.
随着基底负偏压的加入，谱线强度先减小而后增大。

Recently, while at Dulles Airport near Washington DC, my emotions moved from excitement to deja vu.
从兴奋到怅然依旧。这就是最近我在华盛顿特区附近的杜勒斯场获得的感受。

The Ameliorative Project of High Voltage Switch Ark DC Controling Power Supply and Relay Protection
高压开关柜直流控制电源和继电保护的改进方案

Screening of the Anticancer Active Constituents in Cirsium Japonicum DC and Its Anticancer Mechanism
大蓟抗肿瘤成分的筛选及其用机制的研究

Several hundred AIDS activists protested in Washington DC, accusing US trade officials of wrongdoing.
几百名艾滋病激进分子在华盛顿特区示威，控诉美国贸易官员的错误行径。

Meanwhile, the stochastic DC power flow was adopted to achieve calculations for stochastic variables.
采用随机直流潮流实现了各随机变量的相关计算。

Variation in Perianth Structure during the blooming of Michelia alba DC. and Its Aroma Emission Mechanism
白兰开花过程中花被片结构的变化与释香机理

Variable magnetic pole DC motor can resolve the problem of commutator existing in the traditional DC motor.
变磁极性直流电机解决了传统直流电机的换向器问题。

Propagation of Partial Arc During the DC Pollution Flashover Process for Insulator String at Low Air Pressure
低气压下直流绝缘子串污闪过程中局部电弧发展特性

ObjectiveTo study the antibacterial activities of aqueous extracts from the different organs of Inula cappa DC.
目得探讨羊耳菊不同器官水提取物得体外抑菌活性。

Calculation of Stator End Winding Leakage Inductance of Synchronous Generators with AC and DC Stator Connections
交直流混合供电发电机定子绕组端部漏电感的计算

Under the same condition, the con sumption rate of the anode exerted by SWPCs was smaller than that exerted by DC.
同等条件下阳极的消耗率比直流作用时的小。

Ionizing Rule and Characteristic Spectra Analysis of Electrospray Ionization for Alkaloids in Menispermum Dauricum DC.
北豆根生物碱电喷雾质谱电离规律及其特征图谱研究。

STUDY ON CHEMICAL CONSTITUENTS IN ETHYL ACETATE FRACTION OF ALCOHOLIC EXTRACT FROM THE FLOWER OF BOMBAX MALABARICUM DC.
木棉花醇提物中乙酸乙酯溶解组分的化学成分研究。

Discharge Characteristics and Applications for Electrostatic Precipitation of DC Corona with Spraying Discharge Electrodes
直流电晕放电极雾化静电除尘的放电特性及应用

A Study of the Mathematical Model of Heat Transfer of the Watercooled Billet Type Bottom Electrode of DC Electric Arc Furnace
直流电弧炉水冷钢棒式底电极传热数学模型的研究

The phenomenon of direct current components of flux and exciting current arising in a power transformer is called DC bias magnetization.
造成振动的直接原因就是变压器的直流偏磁现象。