压控晶体振荡器是原子频标的重要组成部分。
Voltage controlled crystal oscillator (VCXO) plays an important roll in the atomic frequency standard.
采用气缸压控复卷松紧度，控制可靠，操作方便。
It USES air cylinder to control tightness degree of rewinding, which is reliable and convenient in operation.
研制的宽频偏线性压控晶体振荡器取得了较好的结果。
A developed linear VCXO with wide frequency deviation has acquired better results.
本文提出了一种用两个场效应管实现的压控线性电阻电路。
A voltage controlled linear resistor which consists of only two field-effect transistors (FET) is presented.
给出了一种MEMS压控电容的设计和相位噪声分析结果。
Design and phase noise analysis of a MEMS varactor is presented.
这类压控晶体振荡器广泛用于无线电通讯和其它电子设备作频率源。
This kind of VCXO cover a wide variety of radio communications and other electric equipments as frequency source.
本文提出了一个补偿元件的有源补偿反相压控电压源（VCVS）。
An active compensated inverting VCVS is proposed which has only one compensation element.
介绍了几种可以实现负斜率压控特性和改善压控对称性的压控电路。
Finally, several special voltage control circuits are described, which could realize negative slope voltage control characteristic and improve the voltage control symmetry performance.
首先讨论了限制压控晶体振荡器频偏扩展的原因，和扩展频偏的方法。
This paper discusses the causes for limiting the enlargement of frequency deviation of voltage controlled crystal oscillator and methods for enlarging the frequency deviation.
本文从分析压控晶体振荡器的技术指标对铯束频标的影响出发，提出对它的技术要求。
Through analysis, technical requirements for VCXO used in the cesium atomic clock are put forward in this paper.
本文提出了一种基于压控增益的增益补偿电路设计方案，实验表明较好地实现了增益补偿。
This paper introduces a gain compensating circuit based on voltage-operated gain, which can realize gain compensation effectively.
从恒流源内阻和形成输出电流误差两个方面，给出用运算放大器构成压控恒流源的分析结果。
Typical analysis of the constant-current resistance and the output current error, The writer gives the analysing process by means of operational amplifier.
方法：采用低功耗单片机MSP430F 1611和压控双相恒流刺激产生技术设计系统。
Methods the system utilized low power MCU MSP430F1611 and the technology as generation of bi-phase constant current stimulation.
系统采用霍尔传感器和电压传感器对电压和电流采样，转化成电压信号输给压控芯片LM 231。
The Halls sensor and voltage sensor is used for sampling current and voltage in the system, and the signals are transformed into voltage signal and sent to the LM231.
许多种压控测试阀均是通过环空加泵压打开，泄掉泵压关闭，开井过程中环空始终保持一定的开启压力。
Many pressure dominated testing valve is through pumping of relieving annulus pressure to realize open or shut down hole test valve and keep annulus pressure for certain all the time.
利用小信号压控电流源（VCCS）电路产生所需零点，是一种先进的低压降稳压器（LDO）频率补偿方法。
Using voltage controlled current source(VCCS) to create a zero is a novel scheme for frequency compensation of LDO regulators.
在锁相频率合成器中，由于压控灵敏度的变化，环路增益也将产生同样大小的变化，这就妨碍了环路特性的最佳化。
In frequency synthesis by phase lock, the loop gain will vary by the same amount due to this effect, which generally im - pedes optimization of loop performance.
要使晶体振荡器的输出信号保持原子标准所固有的频率准确度和稳定度，所用压控晶体振荡器必须具有优良的性能。
The performance of VCXO must be excellent so as to maintain the inherent frequency accuracy and stability of the atomic standard.
频率响应也可以由低压微尺寸压控变容器或者变容二极管控制，并且可被例示为与天线模块共存的调谐的谐振匹配滤波器网络。
The frequency response may also be controlled by a low voltage micro sized varicap, or a varactor diode, and instantiated as a tuned, resonant matching filter network residing with the antenna module.
为了获得更加稳定的系统，在电荷泵中设计了结构简单的电流单元用于补偿额外的参数变化，并采用线性压控增益的VCO来减小参数的变化。
Furthermore, a simple adjustable current cell in the charge pump is proposed for additional stability compensation and a novel VCO with linear gain is adopted to limit the total variation.
本文还给出了基于GPS芯片和CPLD，对系统压控晶振时钟进行校准的实现方法，有效解决了由于长时间使用，晶振自身特性变化，造成的频率偏移现象。
This paper introduces the method of clock calibration to VCXO in system, based on GPS and CPLD. It can solve the problem of frequency offset because of Crystal worse behavior in Long-term use.
通常这种工作，都在控压和控温完全密闭实验室中进行，或者牵涉到非常危险的物质。
Often, these manipulations are carried out in closed chambers at carefully maintained pressures and temperatures. They can also involve hazardous materials.
他们每一个都有特殊的方式来控线，又正因为他们特殊的方式，如果克星在那，他们就会被压的很惨。
Each one of them got specific way to control a lane, and because of those specific ways they can either destroy mid if the hero they brutally counter is sent there, or they can get destroyed as well.
关于怎样填写井控作业前必须填写的井数据工作表和压井表，我想大家都会填，就不再浪费时间了。
About how to fill up 'well data work sheet' and 'kill sheet' which must be done before proceeding with well control, I think everyone knows to do it and I do not want to spend more time on them.
矿用气控无压风门的可靠运行取决于连杆机构的受力传动效果，因此有必要对连杆机构的参数进行合理地设计。
The reliable working of balancing pressure pneumatic controlling doors lies on the driving effect of its link machine, so the rational parameters of link machine need to be designed.
探讨堤防透水堤基处理中，采用压渗及排渗控应遵循的原则及如何确定相关的设计指标。
This paper discusses how to handle the seepage foundation for dykes, and gives design index concluded from pressure percolation and standard for seepage control.
并给出了寄生管(临时套管)充气方式连续注气条件下的安全控压方法。
It provided a safety pressure controlling method in the condition of continuously gas injection of parasitical pipe (temporary casing) gas charging approach.
在两口井采用转向剂，实施强制转向重复压裂，获得了成功，达到了控水稳油，提高采收率的目的。
In two of the Wells, we successfully used diverting agent to force fluid to divert, and realized the water controlling, oil increase, and oil recovery enhancement.
并通过非线性有限元模拟分析，给出了细长钢筋混凝土压杆的极限承载力表达式以及由此确定的双控设计法。
The simulated ultimate load formula and double-control design method of slender eccentrically compressed reinforced concrete member were proposed by nonlinear finite element simulation analysis.
并通过非线性有限元模拟分析，给出了细长钢筋混凝土压杆的极限承载力表达式以及由此确定的双控设计法。
The simulated ultimate load formula and double-control design method of slender eccentrically compressed reinforced concrete member were proposed by nonlinear finite element simulation analysis.
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