可调范围

Because the oscillator only has a very narrow tuning range, you can usually only call CQ.

因为晶体仅仅只有非常狭窄的可调范围，你也许通常只呼叫CQ。

The gm-C filter operates with supply voltage of 1.8V, has cutoff frequency of 1.6MHz to 2.4MHz, dissipates 0.75mW power, and has large differential input signals and wide common-mode voltage ranges of ±0.7V.

此滤波器是操作在1.8V的供应电压下，截止频率可调范围为1.6MHz至2.4MHz之间，功率消耗为0.75mW，并且具有±0.7V的高差动输入讯号及高共模输入电压范围。

The essential difference is that the spectrum analyzer, being designed for laboratory use, is designed to cover an extremely wide frequency range with widely adjustable tuning range, bandwidth, etc. It uses one or more sweeping local oscillators Fig.

区别在于频谱分析仪被设计成是实验室使用，设计成是带有很大可调范围和带宽等并覆盖非常大频率范围的仪器。

Measurement results indicate that, by changing the control bits in the gain control circuit and differential circuit, the 3-step peak-to-peak voltage amplitudes are 240, 170 and 115 mV and the center frequency of the impulse can be tuned from 3.2 to 4.1 GHz.

测试结果得到通过改变增益控制和微分电路中的控制位，3级输出脉冲电压峰峰值分别为240 mV、170 mV和115 mV，频谱中心频率可调范围为3.2 GHz 至4.1 GHz。

The field of iew could be aried from 0-180 degrees . The combination of a colonoscope with RAID was simulated by an additional flythrough facing the rectum.

结肠镜视野可调范围为0-180度，附加RAID辅助装置的结肠镜添加了朝向直肠的飞行技术模拟设备。

The production line is suitable for filling low viscosity grainless liquid, and the filling volume can be adjusted in a big scope.

本生产线适用于灌充低粘稠度的无颗粒液体，灌装容量范围可调范围较大。

The production line is suitable for filling low viscosity grainless liquid,the filling volume can be adjusted in a big scope.

本生产线适用于灌充低粘稠度的无颗粒液体，灌装容量范围可调范围较大。

Aiming at a typical complex electromechanical system—temper mill, the study takes its main driving control system as object of study, works out such a difficult problem that many parameters are coupled mutually, hard to be set and configurated in complex electromechanical system, and makes the performance goal of the control system be optimal in the adjustable ranges of parameters.

分析了遗传算法和模拟退火算法寻优性能和各自的不足与局限性，将两种算法巧妙地结合起来加以修正、取长补短构成新的退火遗传算法，提高了算法的整体寻优性能；并以典型的复杂机电系统—平整机为研究对象，以其主传动速度控制系统为切入点，应用退火遗传算法，解决了复杂机电系统中多参数、相互耦合、难于整定和组态的难题，使控制系统的性能指标在参数可调范围内达到最优。

Large adjustable range, can provide precise control in a broad variation range, small volume

可调范围大，可以在广幅的变化范围内提供精确的控制。

The reason of low system efficiency of the mechanical lifting is: unavailable match between transformer and asynchronous motor with large capacity of equipment and large self-consumption; large average no load less of Y series electrical machinery (31.4% of the total oilfield electrical machinery) with 2.86kw; limited adjustable extent of stroke of the electrical machinery in low-liquid produced wells with minimum value of 4 times per minute for limitation of minimum rotation of the electrical machinery and minimum arc of contact of pulley. Energy consumption will be waste for 1 to 1.5 times per minute is enough.

分析显示，造成抽油机系统效率低的原因主要是：变压器与异步电动机之间匹配方式不合理，设备容量大，自身损耗大；占油田电机总量31.4%的Y系列电机的平均空载损耗大，为2.86kW；低产液井电机的冲次可调范围有限，受电机最低转度和皮带轮最小包角限制，其最小冲次仅可调到4次／min，但1~1.5次／min的冲次即可满足生产需要，造成能耗浪费。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失