中频

An environmentally benign method to accelerate the pinacol rearrangement in high temperature liquid water by the addition of CO2 was proposed.

提出了一种通过引入CO2来提高高温液态水中频那醇重排反应速度的方法，测定了不同CO2初始压力和温度等对频那醇重排反应动力学的影响。

In the system, we adopt a balance-channel frequency offset structure,phase-locked IF tracking technique and opened-loop precorrection.

在系统结构上采用了平衡通道频率补偿技术、中频锁相跟踪技术和开环预校正技术。

The basic current waveform to restain the vibration of the motor is given.

给出了利于抑制电机中频振荡的基本相电流波形。

Based on the seismic data obtained in deepwater area of northern South China Sea in recent years, the development of ancient Miocene reef was analyzed. The seismographic result shows typical reef feature in the Xisha uplift, such as the mound, high amplitude, middle frequency, middle continuity, and chaotic reflection. Some reef-like reflection was found in the Miocene Meishan Formation in Beijiao area of Qiongdongnan Basin.

中文摘要：基于近些年南海北部深水区采集的地震资料，对南海北部深水区中新世生物礁发育特点进行分析、对比和研究，认为西沙隆起地区发育典型的生物礁，具有丘状反射、强振幅、中频、中连和杂乱地震相，发现琼东南盆地北礁地区在中新世梅山组也有似礁相发育。

The factory had polish production equipment, complete testing equipment and more than 160 sets of special equipment, such as vacuum induction furnace, medium-frequency induction furnace, centrifugal pouring machine, automatic welder, direct-reading spectrocomparator, endoscope and vortex flaw detector, etc., with the yearly production of 2,500 tons of centrifugal tube casting and 2,000 tons of precision casting.

工厂生产装备精良、检测设备齐全，拥有真空感应电炉、中频感应电炉、离心浇注机、自动焊机、直读光谱仪、内窥镜、涡流探伤仪等各种专用设备160余台套，具有年产离心铸管2500吨、精密铸件2000吨的生产能力。

The original video is spitted into a series of frame groups,for each frame in the group,the points of contour shape are described by MPEG-7,and taking advantage of hash function to calculate the keys between those points in the 1D- DFT transform domain and the watermark signals.

在该算法中，原始视频数据被分割成等帧数的视频组，利用MPEG-7的轮廓编码计算每个视频帧的主要物体轮廓坐标点集合；接着通过傅立叶变换得到该帧轮廓点形状不变量，利用哈希的方法计算水印信号并将这些不变量的有效值作为密钥之一；再对整个视频组的轮廓点进行傅立叶变换，得到其时间轴上的有效不变域，将水印信号嵌入在这个不变域的中频部分以确保了水印的鲁棒性。

Digital watermark is embedded into the middle frequency subband images of the original image in discrete wavelet transformation domain.

研究基于小波变换域的数字水印的嵌入对策和检测方法，实现了数字水印自适应地嵌入到原始图像离散小波变换域的中频子带图像中。

By this model, the target IF return of sum, difference and SLB/SLC antenna channel of the trilobe of frequency-phase scanning 3-D radar could be represented in one uniform expression accurately.

提出了一种三坐标雷达目标中频回波模型及其模拟方法，通过对和、差及辅助通道的目标三联波束回波统一建模，可以全面逼真地模拟频相扫三坐标雷达的目标回波。

In addition, we have series of related products: NZP3 series of stator argon arc welders, HXK series of digital-controlled commutator undercutter, intermediate frequency welders for electronic devices, welders for automobile generator blades, testing platforms for automobile generators , testing platforms for motor overall performance, production lines of automatically winding threads for generators stators, production lines of starter rotors, and etc..

此外还有机关产品：NZP3系列定子叠片氩弧焊机、HXK系列数控整流子下刻机、电子器件中频焊机、汽车发电机风叶焊机、汽车发电机测试台、电机综合性能试验台、发电机定子绕组自动嵌线成套生产线、起动机转子生产线等。产品遍布全国。

In addition, we have series of related products: NZP3 series of stator argon arc welders, HXK series of digital-controlled commutator undercutter, intermediate frequency welders for electronic devices, welders for automobile generator blades, testing platforms for automobile generators , testing platforms for motor overall performance, production lines of automatically winding threads for generators stators, production lines of starter rotors, and etc..

此外还有机关产品：NZP3系列定子叠片氩弧焊机、HXK系列数控整流子下刻机、电子器件中频焊机、汽车发电机风叶焊机、汽车发电机测试台、电机综合性能试验台、发电机定子绕线生产线、起动机转子生产线等。

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