Experiments are carried out to give the transfer functions of each part in the ANC system, the spatial coherences of sound field and the Nyquist plots of the whole system. The results show that reverberant sound will also produce some unstable poles because of different time delays are needed in establishing normal mode response, but the gain margin is much greater than that for direct sound.

文章還從實(shí)驗(yàn)的角度免费观看黄色网站视频免费观看黄色，對(duì)ANC系統(tǒng)各個(gè)部分的傳遞函數(shù)激情狠狠文学网、聲場(chǎng)的空間相干性與系統(tǒng)的Nyquist圖進(jìn)行了分析亚洲一区二区三区动图，結(jié)果說明色色色色色色女内，混響聲場(chǎng)的建立也需要一定的時(shí)間无码中文字幕一级毛片，所以混響聲傳播途徑也將給系統(tǒng)帶來一些不穩(wěn)定的極點(diǎn)一级伦奷视频97人人模，但是它的增益裕量要比直達(dá)聲途徑大很多。

Based on the present conditions in this field all over the world, this dissertation detailedly analysed the working process of the reversible direct current PWM controlled by double poles bridge, and illustrated the merits and shortcomings of the direct current PWM system.

本文針對(duì)國(guó)內(nèi)外在這一領(lǐng)域的研究現(xiàn)狀成年免费人人操，詳細(xì)分析了雙極式控制的橋式可逆直流脈寬調(diào)速系統(tǒng)的工作過程https://igao39.com…，以及直流PWM系統(tǒng)的原理和優(yōu)缺點(diǎn)。

Then when Zhang was in his car leaving the temple, a rioter jumped onto the vehicle's roof, and others hit the car with flag poles.

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Between those poles lay a variety of experience, from the reinvented success of Marlene Dietrich to the pioneering loneliness of Edgard Varèse, a French-Italian Russophile who was one of the first composers to mine non-Western traditions.

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It was a small sampan. A simple tent supported by bamboo poles was erected at the stern.

那是只小舢板偷窥自拍欧美色图，船尾搭了個(gè)簡(jiǎn)陋的竹篷。

If timber poles are used, the bark can be peeled off the tops to expose the light colored sapwood

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When my father came to America from Poland, he came to Scranton, where there were already many other Poles living.

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We can scud, like the Pharaon, under bare poles.

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Accepting the aesthetic thought of Kant and Schiller, and Heidegger\'s artistic truth view, Marcuse points out in sensibility and morals, i.e. during people\'s the two poles present," the aesthetic dimension " is occupying the status of centre, as the soul ability of person practicing, imagine strength having function mediated and liberated to perception and reason; Aesthetic form, self-containment and truth are identical, art not merely has a function of ideology, have political latent energy criticized , denied even more, it strives for the individual\'s freedom and happiness; Aestheticsis the people\'s life style, therefore has proposed the theory of "not constraining life style", it make up one\'s mind bad smell look at latitude of "remember" emphatically really.

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The movie eventually reverse the Earth's poles, the Earth's shell and the surface of separation of magma within the center of the earth spewing out, resulting in numerous deaths.

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