作为信号的

This spectrophotometer can detect a weakreflectance signal as a photomultiplier tube substitutes for a photoelectric cell as the detector.

以高灵敏度的光电倍增管替代光电管作为检测器，这样对微弱的反射光信号能够实施有效的检测。

High detection sensitivity of 120 ppm can be achieved by using wave division mutiplexing technique, gas absorption cell with rectangular prism and digital match filter for the processing of weak signals which measurement accuracy of wavelength can be highly enhanced.

系统以ELED作为宽带入射光源，利用甲烷在光纤低损耗窗口波段的吸收特性，利用波分复用技术和直角棱镜吸收池，并采用提高波长检测精度的DMF对微弱信号进行处理，使得系统的灵敏度达到120 ppm。

Picture cards were mainly used in the illiterate or semiliterate patients and those who did not understand Putonghua, giving a satisfaction rate of 94.25%. Writing boards were mainly suitable for the educated patients with a satisfaction rate of 84.81%. Bell ringing, as a signal of non-language communication, was especially prepared for the senile and infirm patients, with a satisfaction rate of 97.37%.

结果 手势语适用于各层次患者，满意率为96.02%；图片卡主要适用于文盲或半文盲和听不懂普通话的患者，满意率为94.25%；写字板则主要适用于有一定文化水平的患者，满意率为84.81%；而摇铃主要作为年老体弱患者需要非语言交流的信号，满意率为97.37%。

The music signal was divided into several subsections and the length of each section was equal to the duration of one semiquaver. The base frequency was obtained using one dimension DCT operated on each section. The extreme points of the musical notes were found by comparison with the adjacent sub-sections. And then, the musical scores were got using the principle of least derived notes.

采用离散余弦变换结合能量比对的手段，并提出了一种变化音最少法则：以十六分音符对应的时值作为步长，将乐曲信号分为若干个子段；对每个子段进行一维DCT操作，提取基音频率；对相邻子段进行能量比对，查找音符的端点；利用变化音最少法则，生成乐谱。

The music signal was divided into several sub-sections and the length of each section was equal to the duration of one semiquaver. The base frequency was obtained using one dimension DCT operated on each section. The extreme points of the musical notes were found by comparison with the adjacent sub-sections. And then, the musical scores were got using the principle of least derived notes.

采用离散余弦变换结合能量比对的手段，并提出了一种变化音最少法则：以十六分音符对应的时值作为步长，将乐曲信号分为若干个子段；对每个子段进行一维DCT操作，提取基音频率；对相邻子段进行能量比对，查找音符的端点；利用变化音最少法则，生成乐谱。

The motor is competent for long low-speed or stopping up and the clutch has fine characteristic of control with torque. Sensors as forward access obtain signal, an industrial computer with abundant hardware resource as background utilize set-in boards based on PCI bus and serial modules to fulfill data transmission and instruction communication.

传感器作为前向通道拾取各信号，后台以工业控制计算机丰富的硬件资源为基础，利用基于PCI高速总线的插卡式测量板卡和串口模块实现与计算机的数据传输和命令通讯。

A classic book of communication signal processing, the Xian-Da, Bao Zheng, who prepared for the direction of electronic and information engineering scholars as a textbook.

详细说明：一本很经典的通信信号处理的书，由张贤达，保铮等人编写，适合电子信息工程方向的学者作为教材。

The limited direction basis function of DWT has made it impossible to describe high-dimensional signals such as images very well. Compared with this demerit, the second-generation Bandelet transform is a novel multi-scale geometric analysis method, which can adaptively trace the geometrical regular surfaces.

有限的方向基函数导致DWT无法很好表述图像这种高维信号问题，而第二代Bandelet变换作为一种新兴的多尺度几何分析方法，能自适应地跟踪图像的几何正则方向。

Being maritime sound signal detector of a new generation, fibre-optics hydrophone must have high delicacy and biggish dynamic range.

作为新一代的海域声信号探测器，光纤水听器必须具有极高的灵敏度和较大的动态范围。

In order to investigate the effect of nonlinear system on SR, Duffing system is adopted and an algorithm based on Duffing system is proposed.

为了考察非线性系统对弱信号检测效果的影响，选用了Duffing方程作为随机共振的非线性系统，提出了基于Duffing系统的随机共振算法。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了