调制的

A modem converts the digital signals of the sending computer to analog signals that can be transmitted through telephone lines.

调制解调器将发送端计算机的数字信号转换成可通过电话线传输的模拟信号。

Samples of an analogue signal by character signals according to a defined code.

在脉码调制技术中，按照确定的代码由字符信号对模拟信号量化采样的表示法。

All these analyzation are useful to guide the circuit design and help to optimize the circuit design and save power.

这些分析指导了后续电路的设计，并优化了整体调制器电路的性能和功耗。

Putting a modem/computer in answer mode is sometimes done through software and sometimes through hardware, i.e. a switch on the side of the machine.

将一台调制解调器或计算机设置为应答模式，有时是通过软件来设置的，有时是通过硬件来设置的。

As substitute for fluorite lens, a double-layer DOE is used in a long focal-length apochromatic objective lens. The modulation transfer function of this hybrid optical system is suggested for evaluating diffraction efficiency of the multilayer DOE. The results show the diffraction efficiency has a wide and symmetrical distribution in the whole waveband.

利用双层衍射光学元件替代萤石透镜校正混合光学系统的二级光谱，设计并制作了一套长焦距物镜，并利用系统调制传递函数评价了多层衍射光学元件衍射效率，测试结果表明衍射效率在整个设计波段内以较高的数值平均分布。

To solve the problem, an approximate theoretical computation method for BER is proposed and simulation experiments are made.

针对此问题，本文给出了在QPSK调制解调系统中，本振相位噪声引起的误码率恶化的理论计算方法，并对此进行了仿真验证。

The archimedes spiral cord modulating chopper's exposure efficiency was theoretically analyzed and numerical simulated, and its impact on the following signal processing was obtained.

对阿基米德螺旋线调制斩波器的曝光效率进行了理论分析和数值模拟，得到斩波器曝光效率对后续信号处理的影响。

The rising audio response of the phase modulator did cause some problems for manufacturer's.

调相PM调制器的上升的音频响应确实给生产厂商带来了一些问题。

The way the transmitter audio response is measured is to apply a fixed modulating signal level which produces 60% of rated system deviation (3 kHz in our case) at 1000 Hz.

要测量发射音频的频率响应，方法是加上一个固定调制信号电平，这个电平在1000HZ下产生系统设计频偏的60%（这里是3KHZ）。

Adaptive Modulation and Coding and Hybrid Automatic Repeat reQuest are two main link adaptation techniques. Along with the higher demands of data rate and quality of service, the system performance can be well improved by employing AMC and HARQ.

链路自适应技术能有效地提高数据传输速率和频谱利用率，是目前和未来移动通信系统的关键技术之一，自适应调制编码AMC和混合自动请求重传HARQ是其中两种主要的链路自适应技术。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。