中频

Company main equipment: 160 ton friction press, thread rolling machine CW6140A, CD6140A, the C630 lathe, WQ8260, crankshaft grinding T716, the vertical boring machine, the hydraulic pressure test platform, hit press M4214, the vertical hydraulic pressure grinder, the drilling machine, the saw village 60 tons presses, 5 tons overhead traveling cranes two, the GB4-1 sail loom, GB4035 metal gig saw ZPH-501 the intermediate frequency electric radiator DS-500 electric welding machine, the DSI-300 electric welding machine, the air compressor, the paper-cutting machine, the heat bonding machine, the stamping press, the laminating machine.

公司主要设备：160吨摩擦压力机、滚丝机CW6140A、CD6140A、C630车床、WQ8260、曲轴磨床T716、立式镗床、液压试验台、打压机M4214、立式液压研磨机、钻床、锯庄60吨压力机、5吨天车两部、GB4-1帆布机、GB4035金属带锯床ZPH-501型中频电热器DS-500电焊机、DSI-300电焊机、空气压缩机、裁纸机、热合机、烫金机、覆膜机。

It indicates that FPGA is especially suitable for SDF design with its advantage of reconfiguration and parallel processing.

表明了FPGA由于可重构性和并行处理的优势，特别适合于软件无线电数字中频处理。

Weld line is the key part of ERW steel pipe because the impact toughness of its raw material is multiple times higher than that of seamless steel pipes. The impact energy of weld line can reach 60% of the raw material by controlling impurity content in raw material, the height and direction of the burr, mold border shape, welding leg, welding speed, heating power and frequency, welding extrusion capacity, the depth and temperature of intermediate frequency, as well as air-cooled length. Seamlessness can be realized if further optimization methods are adopted.

由于ERW钢管母材的冲击韧性数倍于无缝钢管，焊缝处的冲击韧性是ERW钢管的关键，通过控制原材料杂质含量、纵剪毛刺高度与方向、成型边部形态、焊角、焊接速度、加热功率与频率、焊接挤压量、中频退伙温度与深度、空冷段长度等工艺参数保证了焊缝的冲击功达到母材的60%以上，如进一步优化，可实现焊缝冲击功接近母材，从而实现性能无缝化。

According to the start-up problem,the two soft start-up circuit structure and theory are introduced in detail in the paper,such as self-excitation soft start-up circuit and based on CD4046 soft start-up circuit.

针对中频电源启动问题，介绍了两种软启动电路——自激软启动电路和基于CD4046的软启动电路的构成和原理。

There's a good build but the bass and the treble have been boosted unsuccessfully, emphasizing the sibilant distortion and the bass is thick and boomy Very serious sibilant distortion and the mid range and bass are very thick.

整体构造不错，但是低频和高频部分的提升不成功，加重了咝声的失真，低频太厚重且混浊。非常严重的咝声失真，中频和低频都太厚了。

This thesis introduces the design of DVB-T software receiver. We simulate the software receiver to demodulate the video signal from the IF signal of set top box.

本篇论文主要是利用从数位电视盒中频讯号的部份所取样出来的讯号，设计一个软体接收机将电视讯号解调回来。

Aiming at the constraint of analog input signal in digital receivers,a kind of well adaptive signal conditioning circuit is designed in this paper.

针对中频数字接收机中对输入模拟信号的要求，设计一种适应性良好的信号调理电路。

This paper designs hardware of a single-phase bridge medium-frequency inverter including of main circuit and control circuit.

介绍了单相全桥式逆变的400Hz中频电源主电路设计以及基于80C196MC的控制电路设计。

F10 is one good auditory peg,but the desired effect is not so good with the original wire.It is bright and piercing on HF,it is dry on IF and it is in chaos on LF.It has no smoothy level and transfer,so the original wire let the quality of TF10 fall 3 levels.

F10是只好耳塞，但是原配线材的效果非常不理想，高频亮刺，中频干涩，低频团块，完全没有顺滑的过度和层次，一点不夸张的说，这条原配线让TF10连降3级。

This invention relates to a new type nanometer crystal Fe-Zr-Nb-Si-Al-Cu series soft magnetic alloy super thin band and its process technology in which, the mother alloy is smelted by vacuum IF induction oven, an amorphous band is processed by a single quick cooling device to be processed by magnetic field heating at last to get the needed product with good soft magnet performance and iron core made by the super thin band improves its magnetic performance greatly.

本发明为一种新型纳米晶Fe-Zr-Nb-Si-Al-Cu系软磁合金超薄带及其制备工艺。由真空中频感应炉冶炼母合金，用单辊冷急装置制得非晶带，最后对非晶带进行磁场热处理，从而制得所需产品。本发明的合金超薄带具有优良的软磁性能，生产成本也较低。由本发明的超薄带制得的铁芯，其磁性能有很大改善，在国防和民用工业方面有广泛用途。

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