变换器

DC voltage divider can be used to design lower voltage direct current power.

直流分压器集开关电源和电能变换于一身，可以被用来设计降压型直流电源。

Finally, suitable correlation of flow boiling with pure refrigerants in horizontal tubes, condensation heat exchange factor of steam containing non condensable gases and air-side thermal performance of condenser are selected by means of programming calculation.

最后用自编的专用程序计算、拟合了双相变换热器的水平光管内沸腾和汽侧冷凝的换热关联式。

By means of presupposing the frequency in dual d-q coordinate transformation matrix the detection of specific-order harmonic is realized; by way of adding forecasted compensation angle into detecting link, the time-delay brought by digital controller and inverter is compensated.

该方法通过预设双d-q坐标变换矩阵中的频率，实现了对特定次谐波的检测，通过在检测环节中加入预测补偿角，补偿了数字控制器和逆变器带来的延时。

Wavelet transform was used to analysis the characteristic of velocity pulsated signals in SK-static mixer,which were measured by using of LDV.

以SK型静态混合器为研究对象，运用激光多普勒测速仪对管内流体的速度脉动信号进行检测，运用小波变换分析检测信号来研究其速度脉动特性。

Precision shunts are used to convert currents to voltages for the amps functions.

用精密分流器将电流变换成电压以实现电流测量功能。

In the fourth paragraph, how the theory of the damping to forging hammer foundation advances at home and abroad, the research and application of the implement for damping to forging hammer, the structure of damping to forging hammer and the calculation methods for forging hammer foundation vibration system, which are used at home nowadays, are particularly introduced.In the fifth paragraph, aiming at direct damping under anvil block of forging hammer, the author bases a mechanics model of two-degree with damping, and optimizes the vibration parameters both in frequency field and in time field, then finds out the new simple method of optimizing the vibration parameters of the damping device under anvil block of forging hammer.

第五章针对锻锤砧下直接支承式减振基础，建立了锻锤减振系统的二自由度有阻尼振动力学模型，然后用傅立叶变换法求出振动传递率的频率关系，用直接积分法求出砧座和基础位移的时域响应，并分别对频域函数和时域函数进行参数优化，最终建立起频率函数—时域函数—优化参数间的相互关系，从而找到了锻锤砧下隔振器参数优化的简便新方法。

Lightened on the turbine valve controller designed with feedback linearization theory and introduced nonlinear tracking-differentiator, a novel nonlinear PID valve controller was proposed. This controller can fit not only to plant with some model error and random disturbance in variable, but also to the variety of the structure and operating conditions of power system. The transient and dynamic characters of the controller are both satisfactory when big and small disturbances added. The good performance, wide stable margin and heavy robustness of the valve controller proved that it is a great practical application to enhance the stability of power system.

结合反馈线性化法汽轮发电机组的汽门控制研究成果，引入非线性跟踪微分器和非线性度变换控制，进行了发电机组的非线性PID汽门控制器设计，该控制器不仅能适应一定的系统模型误差与变量的不确定性干扰，而且对于电网结构和运行工况的变化有着较强的适应能力，在受大、小扰动的情况下，呈现了较好的暂态特性和动态品质，具有较好的控制品质、较高的稳定裕度和较强的鲁棒性能，有利于进一步改善电力系统的稳定性，显示了其较强的实用性。

Choosing fit picture as background picture in whole picture preface row, adopting picture matrix difference to do away with the object such as machine hull and ruler, then attaining picture with only seeds.

在整个图像序列中挑选合适的帧图像作为背景图像，运用图像矩阵差分去除排种器壳和标尺等对象，再将差分矩阵变换成只含种子的图像。

Some technical expressions: Hough transformation: Hough transform K average value: K-means fitting straight line: fitting line pattern plate match: template matching vertical and horizontal axis projection: vertical and horizontal projection BP neural network algorithm: BP neural networks most close neighbor sorter: K-NN

一些专业术语：Hough变换：Hough transform K均值：K-means 拟合直线：fitting line 模版匹配：template matching 垂直与水平投影法：vertical and horizontal projection BP神经网络算法：BP neural networks 最近邻分类器：K-NN --------- PS：Google翻译的就不用贴了

For example, in most ADSL modems the transmit signal is generated via an inverse fast Fourier transform.

例如，在大部分ADSL调制解调器中发射信号是由反向快速傅立叶变换得到的。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。