英语高手来,论文摘要翻译,汉译英。
China-us economic and trade relations are an important part of sino-us relations. As the world's largest developing country and the largest developed country, sino-american in nature and human resources, market, capital, technology has strong complementarity, china-us economic and trade relations with the stable and healthy development of the long-term interests of both countries. Since the establishment of diplomatic relations and the us-china trade disputes in rapid growth in recent years, especially, the us-china trade growth, trade between the two countries dispute also deepened ceaselessly. This paper discusses the present situation of sino-us trade disputes, discusses the causes and the reasons for the formation of trade disputes, thus opened the essence of sino-us trade disputes, and puts forward some solving measures.
花点钱去外面翻译公司做吧
一般这个报价在软妹币500左右
The adjustable amplifier mainly includes the amplifier and the filter. Through analog switch CD4051, the amplifier alters the feedback resistance value and then alters the voltage gain at the amplifier. The adjustable steps from 10dB to 60dB at the gain are 10dB. At the filter part, a single chip microcomputer AT89S51 has been used to realize the programmed control to the programmable filter chip MAX262; it can realize second stage low pass, high pass, band pass, band resistance and all-pass filter processing simultaneously at the two inputting signals. The central frequency of the filter is between 15kHz~50kHz; a 64 level programmed adjustment is realized within that frequency range, whose Q value can be adjusted at 128 levels in the range of 0.5~64.
这么专业 的 东西 怕是要花点钱 哦
Controllable amplifier and filter amplifier consists mainly of two parts. Amplifier in part through the analog switches CD4051, change the feedback resistor, thus changing the voltage amplifier gain, gain from 10dB to 60dB adjustable pace was 10dB. Filter part of the filter with the programmable microcontroller AT89S51 chip MAX262 to control, can simultaneously on the two input signals, low pass, high pass, band pass, band-stop and all-pass filter, the filter center frequency 15kHz ~ 50kHz frequency range to achieve 64 programmable adjustment, the Q value in the range of 0.5 to 64 program-controlled adjustment to achieve 128.
Controlled amplifiers mainly contains amplifiers and filter in two parts. Through simulation CD4051 switch amplifier, change, change the feedback resistance voltage amplifier, gain 10dB to gain from 60dB adjustable step for 10dB. AT89S51 single-chip part adopts filter for programmable filter for program control, MAX262 chip can input signal for two road, high and low let-through second-order band-pass, band-stop and full filtering processing center frequency, filter in 15kHz ~ 50kHz frequency range, the 64 class program-controlled Q value in 0.5 ~ 64 scope magnitude program-controlled adjustment. Realizing 128
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