当交流分量的频率增加时，直流仪表的响应就会变得不够快，直到在某一频率时，仪表只能显示出输入电压的平均值。
As the frequency of the AC component increases, the DC meter response decreases, until at some frequency only the average input voltage will be displayed.
该衰减电路是一种降低静电计交流响应的低通滤波器，使我们可以准确地进行直流弱电流的测量。
A damping circuit is a type of low pass filter that reduces the electrometer's ac response so the low DC current can be measured accurately.
虽然本书的重点是直流测量，但是要分析噪声和仪器响应速度的问题，就需要简单地讨论一下电子电路中时间和频率的关系。
Although this handbook stresses DC measurements, an analysis of noise and instrument response speed requires a brief discussion of time and frequency relationships in electronic circuits.
实验结果表明：在网络控制系统中无刷直流电动机转速响应快速，运行平稳，证明了这种新型控制系统的有效性和可行性。
The experimental result shows BLDCM response rapidly and run stableness in networked control system and proves the validity and feasibility of this control system.
直流联网对发电机速度信号具有迅速作出响应的能力并按需要提高和降低潮流以阻尼暂态振荡。
The DC interconnection has the ability to respond rapidly to generator speed signals and increase or decrease the power flow as needed to dampen the transient oscillations.
研究了直流升压变换器动态响应特性。
The dynamic response characteristics of DC Boost converter were researched.
由于直流传送功率的改变要快于交流系统，直流系统对控制整定值能迅速作出响应。
The DC system is capable of rapid response to changes in control setting, with DC power transfer changes occurring faster than in AC systems.
电流建立阶段的电流响应主要取决于直流母线电压。
In the current set-up phase, the current response mainly depends on the DC voltage.
仿真结果表明：PWM整流器启动时的直流电压超调量小，响应速度快，具有极佳的动静态性能。
The simulation results show that the PWM rectifier has the merits of low overshoot of starting direct voltage, high speed of response and excellent dynamic and static performance.
提出了一种适用于基于电压源换流器的直流输电系统的混合调制方式，可满足输电系统的暂态响应和稳态特性的需求。
A hybrid modulation method is proposed for the HVDC system using voltage sourced converter (VSC) technology, which performs satisfactorily both in steady state and in dynamic state.
为了验证和评估直流系统的动态响应性能，专题开展了高岭直流输电工程的动态性能研究工作。
To verify and evaluate the dynamic response performance of HVDC system, as a special topic, the dynamic performance of Gaoling HVDC power transmission project is researched.
另一方面，线路故障后直流线路保护的暂态响应特性与控制系统强相关，而对直流系统这种特有复杂性对线路保护影响的研究较少。
On the other hand, the transient characteristics of the HVDC line fault and thus the line protections are affected by the HVDC control system, which is very complicated and still a hard nut to crush.
另一方面，线路故障后直流线路保护的暂态响应特性与控制系统强相关，而对直流系统这种特有复杂性对线路保护影响的研究较少。
On the other hand, the transient characteristics of the HVDC line fault and thus the line protections are affected by the HVDC control system, which is very complicated and still a hard nut to crush.
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