工(gong)(gong)(gong)控(kong)(kong)模(mo)擬(ni)(ni)(ni)芯片可(ke)(ke)(ke)(ke)以(yi)(yi)(yi)模(mo)擬(ni)(ni)(ni)和(he)放(fang)大各種傳感(gan)器(qi)信(xin)(xin)號(hao)(hao)，這(zhe)些傳感(gan)器(qi)可(ke)(ke)(ke)(ke)能(neng)檢(jian)測溫度、壓力、位移、速度等(deng)物理量。通(tong)過(guo)模(mo)擬(ni)(ni)(ni)芯片的(de)處理，這(zhe)些信(xin)(xin)號(hao)(hao)被轉化(hua)為系(xi)統可(ke)(ke)(ke)(ke)以(yi)(yi)(yi)識(shi)別的(de)電(dian)(dian)信(xin)(xin)號(hao)(hao)，從而(er)實(shi)現對(dui)工(gong)(gong)(gong)業過(guo)程的(de)精確(que)(que)監控(kong)(kong)。工(gong)(gong)(gong)控(kong)(kong)模(mo)擬(ni)(ni)(ni)芯片還(huan)可(ke)(ke)(ke)(ke)以(yi)(yi)(yi)對(dui)電(dian)(dian)信(xin)(xin)號(hao)(hao)進行濾波(bo)、放(fang)大、比較等(deng)處理。這(zhe)些處理可(ke)(ke)(ke)(ke)以(yi)(yi)(yi)確(que)(que)保信(xin)(xin)號(hao)(hao)的(de)穩定性(xing)和(he)可(ke)(ke)(ke)(ke)靠性(xing)，防止噪聲干擾和(he)異常波(bo)動對(dui)控(kong)(kong)制系(xi)統的(de)影響。工(gong)(gong)(gong)控(kong)(kong)模(mo)擬(ni)(ni)(ni)芯片還(huan)可(ke)(ke)(ke)(ke)以(yi)(yi)(yi)實(shi)現與主(zhu)控(kong)(kong)制器(qi)的(de)接(jie)(jie)口(kou)設計。通(tong)過(guo)接(jie)(jie)口(kou)，主(zhu)控(kong)(kong)制器(qi)可(ke)(ke)(ke)(ke)以(yi)(yi)(yi)獲取來自模(mo)擬(ni)(ni)(ni)芯片的(de)電(dian)(dian)信(xin)(xin)號(hao)(hao)，并(bing)根(gen)據這(zhe)些信(xin)(xin)號(hao)(hao)實(shi)現對(dui)工(gong)(gong)(gong)業過(guo)程的(de)控(kong)(kong)制。這(zhe)種接(jie)(jie)口(kou)設計使得主(zhu)控(kong)(kong)制器(qi)無需直接(jie)(jie)與復雜(za)的(de)外(wai)圍電(dian)(dian)路通(tong)信(xin)(xin)，簡化(hua)了(le)系(xi)統的(de)復雜(za)性(xing)和(he)開發難度。半導(dao)體(ti)模(mo)擬(ni)(ni)(ni)芯片通(tong)常由多個(ge)功(gong)能(neng)模(mo)塊組成(cheng)，包括放(fang)大器(qi)、濾波(bo)器(qi)和(he)模(mo)擬(ni)(ni)(ni)信(xin)(xin)號(hao)(hao)處理器(qi)等(deng)。北(bei)京通(tong)用模(mo)擬(ni)(ni)(ni)芯片生產廠家

工(gong)控(kong)(kong)模擬(ni)(ni)(ni)芯(xin)(xin)(xin)片(pian)可(ke)以(yi)(yi)(yi)(yi)通(tong)(tong)過(guo)對電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang)頻(pin)(pin)率(lv)(lv)的(de)(de)(de)(de)實(shi)時(shi)(shi)監測(ce)(ce)，獲取電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang)頻(pin)(pin)率(lv)(lv)的(de)(de)(de)(de)信(xin)息(xi)，并(bing)將這(zhe)些(xie)(xie)信(xin)息(xi)傳遞給控(kong)(kong)制(zhi)(zhi)系(xi)(xi)統(tong)。控(kong)(kong)制(zhi)(zhi)系(xi)(xi)統(tong)根據這(zhe)些(xie)(xie)信(xin)息(xi)調整(zheng)電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang)的(de)(de)(de)(de)功率(lv)(lv)輸出(chu)(chu)，以(yi)(yi)(yi)(yi)保(bao)持電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang)頻(pin)(pin)率(lv)(lv)的(de)(de)(de)(de)穩(wen)定。工(gong)控(kong)(kong)模擬(ni)(ni)(ni)芯(xin)(xin)(xin)片(pian)還可(ke)以(yi)(yi)(yi)(yi)用(yong)于電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang)的(de)(de)(de)(de)功率(lv)(lv)因數(shu)校正。通(tong)(tong)過(guo)對電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang)電(dian)(dian)(dian)(dian)(dian)流(liu)和(he)(he)電(dian)(dian)(dian)(dian)(dian)壓的(de)(de)(de)(de)實(shi)時(shi)(shi)監測(ce)(ce)，工(gong)控(kong)(kong)模擬(ni)(ni)(ni)芯(xin)(xin)(xin)片(pian)可(ke)以(yi)(yi)(yi)(yi)判(pan)斷電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang)的(de)(de)(de)(de)功率(lv)(lv)因數(shu)是否(fou)正常，如果不(bu)正常，就可(ke)以(yi)(yi)(yi)(yi)通(tong)(tong)過(guo)控(kong)(kong)制(zhi)(zhi)系(xi)(xi)統(tong)調整(zheng)電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang)的(de)(de)(de)(de)功率(lv)(lv)輸出(chu)(chu)，以(yi)(yi)(yi)(yi)改(gai)善電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang)的(de)(de)(de)(de)功率(lv)(lv)因數(shu)。工(gong)控(kong)(kong)模擬(ni)(ni)(ni)芯(xin)(xin)(xin)片(pian)還可(ke)以(yi)(yi)(yi)(yi)用(yong)于電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang)的(de)(de)(de)(de)故(gu)障(zhang)(zhang)診斷和(he)(he)保(bao)護。當(dang)電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang)出(chu)(chu)現(xian)故(gu)障(zhang)(zhang)時(shi)(shi)，工(gong)控(kong)(kong)模擬(ni)(ni)(ni)芯(xin)(xin)(xin)片(pian)可(ke)以(yi)(yi)(yi)(yi)通(tong)(tong)過(guo)對電(dian)(dian)(dian)(dian)(dian)網(wang)(wang)(wang)電(dian)(dian)(dian)(dian)(dian)流(liu)和(he)(he)電(dian)(dian)(dian)(dian)(dian)壓的(de)(de)(de)(de)實(shi)時(shi)(shi)監測(ce)(ce)，判(pan)斷出(chu)(chu)故(gu)障(zhang)(zhang)的(de)(de)(de)(de)類(lei)型(xing)和(he)(he)位置，并(bing)將這(zhe)些(xie)(xie)信(xin)息(xi)傳遞給控(kong)(kong)制(zhi)(zhi)系(xi)(xi)統(tong)，以(yi)(yi)(yi)(yi)便及時(shi)(shi)采(cai)取保(bao)護措施，避免事(shi)故(gu)擴(kuo)大。合(he)肥計算機模擬(ni)(ni)(ni)芯(xin)(xin)(xin)片(pian)工(gong)控(kong)(kong)模擬(ni)(ni)(ni)芯(xin)(xin)(xin)片(pian)能(neng)實(shi)施數(shu)據采(cai)集和(he)(he)處理(li)，為(wei)工(gong)業控(kong)(kong)制(zhi)(zhi)系(xi)(xi)統(tong)提供可(ke)靠(kao)的(de)(de)(de)(de)數(shu)據支持。

模(mo)(mo)擬(ni)芯(xin)(xin)片(pian)(pian)主要(yao)用于處(chu)理(li)連續的(de)(de)模(mo)(mo)擬(ni)信(xin)號，與(yu)數(shu)字(zi)芯(xin)(xin)片(pian)(pian)一起，它們(men)構(gou)成了電(dian)(dian)子設(she)(she)備的(de)(de)中(zhong)(zhong)心部(bu)分(fen)。在(zai)智能(neng)(neng)家居中(zhong)(zhong)，模(mo)(mo)擬(ni)芯(xin)(xin)片(pian)(pian)主要(yao)用于以下幾個領域：1. 電(dian)(dian)源(yuan)管理(li)：模(mo)(mo)擬(ni)芯(xin)(xin)片(pian)(pian)可以高效地將電(dian)(dian)源(yuan)轉(zhuan)化(hua)為(wei)各種設(she)(she)備所需的(de)(de)電(dian)(dian)壓和(he)電(dian)(dian)流，確保設(she)(she)備的(de)(de)穩定(ding)(ding)運行。2. 傳感(gan)(gan)器(qi)(qi)：許多(duo)智能(neng)(neng)家居設(she)(she)備需要(yao)依靠傳感(gan)(gan)器(qi)(qi)來(lai)感(gan)(gan)知環(huan)境，如溫度(du)、濕度(du)、光(guang)線等。模(mo)(mo)擬(ni)芯(xin)(xin)片(pian)(pian)可以精確地處(chu)理(li)這(zhe)些傳感(gan)(gan)器(qi)(qi)的(de)(de)信(xin)號，并(bing)將其轉(zhuan)化(hua)為(wei)數(shu)字(zi)數(shu)據。3. 接口控(kong)制：模(mo)(mo)擬(ni)芯(xin)(xin)片(pian)(pian)也用于控(kong)制各種接口，如I2C、SPI等，實現設(she)(she)備之間的(de)(de)通信(xin)。在(zai)物聯網(wang)(wang)中(zhong)(zhong)，模(mo)(mo)擬(ni)芯(xin)(xin)片(pian)(pian)的(de)(de)應用同樣重要(yao)。例如，在(zai)物聯網(wang)(wang)設(she)(she)備中(zhong)(zhong)，需要(yao)大量的(de)(de)傳感(gan)(gan)器(qi)(qi)來(lai)收集各種數(shu)據，如溫度(du)、壓力、光(guang)照等，模(mo)(mo)擬(ni)芯(xin)(xin)片(pian)(pian)就負(fu)責處(chu)理(li)這(zhe)些傳感(gan)(gan)器(qi)(qi)的(de)(de)信(xin)號，并(bing)把(ba)信(xin)號轉(zhuan)化(hua)為(wei)可以上傳至網(wang)(wang)絡的(de)(de)數(shu)字(zi)數(shu)據。同時，模(mo)(mo)擬(ni)芯(xin)(xin)片(pian)(pian)也用于處(chu)理(li)網(wang)(wang)絡中(zhong)(zhong)的(de)(de)模(mo)(mo)擬(ni)信(xin)號，保證數(shu)據的(de)(de)穩定(ding)(ding)傳輸。

模(mo)擬芯(xin)(xin)片(pian)實現信(xin)號的(de)(de)(de)(de)(de)(de)放(fang)大(da)(da)(da)(da)和(he)濾(lv)波(bo)(bo)主(zhu)(zhu)要(yao)通過以下步(bu)驟：1. 信(xin)號放(fang)大(da)(da)(da)(da)：模(mo)擬芯(xin)(xin)片(pian)通常(chang)使用(yong)運算放(fang)大(da)(da)(da)(da)器(qi)(qi)（Op-Amp）作為基本(ben)放(fang)大(da)(da)(da)(da)單(dan)元。運算放(fang)大(da)(da)(da)(da)器(qi)(qi)能將(jiang)輸(shu)入(ru)的(de)(de)(de)(de)(de)(de)微弱信(xin)號進(jin)行比例放(fang)大(da)(da)(da)(da)，其(qi)增益可(ke)調，以適應不同的(de)(de)(de)(de)(de)(de)應用(yong)場景。為了(le)實現穩(wen)定的(de)(de)(de)(de)(de)(de)放(fang)大(da)(da)(da)(da)，通常(chang)需要(yao)在反(fan)饋回路(lu)中加(jia)入(ru)負反(fan)饋，以確保輸(shu)出(chu)的(de)(de)(de)(de)(de)(de)信(xin)號不會因環(huan)境變化而產生偏差(cha)。2. 濾(lv)波(bo)(bo)：濾(lv)波(bo)(bo)是(shi)用(yong)來提(ti)取有用(yong)信(xin)號，抑制無(wu)用(yong)信(xin)號的(de)(de)(de)(de)(de)(de)。模(mo)擬芯(xin)(xin)片(pian)中常(chang)用(yong)的(de)(de)(de)(de)(de)(de)是(shi)有源(yuan)(yuan)濾(lv)波(bo)(bo)器(qi)(qi)和(he)無(wu)源(yuan)(yuan)濾(lv)波(bo)(bo)器(qi)(qi)。有源(yuan)(yuan)濾(lv)波(bo)(bo)器(qi)(qi)主(zhu)(zhu)要(yao)由集成(cheng)運放(fang)和(he)RC組成(cheng)，利用(yong)RC的(de)(de)(de)(de)(de)(de)頻(pin)率(lv)(lv)特性實現對(dui)某一(yi)頻(pin)率(lv)(lv)范圍內的(de)(de)(de)(de)(de)(de)信(xin)號進(jin)行濾(lv)波(bo)(bo)。無(wu)源(yuan)(yuan)濾(lv)波(bo)(bo)器(qi)(qi)則(ze)主(zhu)(zhu)要(yao)由電(dian)阻、電(dian)容和(he)電(dian)感組成(cheng)，對(dui)某一(yi)頻(pin)率(lv)(lv)范圍的(de)(de)(de)(de)(de)(de)信(xin)號進(jin)行濾(lv)波(bo)(bo)。3. 反(fan)饋控制：為了(le)提(ti)高系統(tong)的(de)(de)(de)(de)(de)(de)穩(wen)定性，模(mo)擬芯(xin)(xin)片(pian)中還(huan)常(chang)常(chang)使用(yong)負反(fan)饋控制環(huan)路(lu)。通過在系統(tong)中引入(ru)負反(fan)饋，可(ke)以抵消系統(tong)中的(de)(de)(de)(de)(de)(de)誤差(cha)，使得系統(tong)的(de)(de)(de)(de)(de)(de)輸(shu)出(chu)能更精(jing)確地(di)跟隨輸(shu)入(ru)。4. 噪聲(sheng)抑制：模(mo)擬芯(xin)(xin)片(pian)還(huan)需要(yao)考慮(lv)噪聲(sheng)的(de)(de)(de)(de)(de)(de)問題。噪聲(sheng)可(ke)能來源(yuan)(yuan)于環(huan)境中各(ge)種(zhong)干擾，如(ru)(ru)電(dian)源(yuan)(yuan)波(bo)(bo)動、電(dian)磁(ci)場干擾等。為了(le)抑制這(zhe)些(xie)噪聲(sheng)，模(mo)擬芯(xin)(xin)片(pian)中通常(chang)會引入(ru)各(ge)種(zhong)噪聲(sheng)抑制技(ji)(ji)術，如(ru)(ru)去耦技(ji)(ji)術、屏蔽技(ji)(ji)術等。工業模(mo)擬芯(xin)(xin)片(pian)在物(wu)聯(lian)網領域發揮(hui)著(zhu)重要(yao)作用(yong)，實現了(le)工業設備的(de)(de)(de)(de)(de)(de)互(hu)聯(lian)互(hu)通和(he)智(zhi)能化管理(li)。

通信(xin)(xin)(xin)(xin)(xin)(xin)系統中(zhong)，模(mo)(mo)擬(ni)芯(xin)(xin)(xin)片(pian)主要用(yong)(yong)于信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)的(de)發送(song)、接收(shou)和信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)處(chu)理(li)(li)。首(shou)先(xian)，模(mo)(mo)擬(ni)芯(xin)(xin)(xin)片(pian)在(zai)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)發送(song)環節起到(dao)關鍵(jian)作(zuo)用(yong)(yong)。在(zai)發送(song)端，信(xin)(xin)(xin)(xin)(xin)(xin)息通常以(yi)(yi)電信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)的(de)形式傳(chuan)輸。模(mo)(mo)擬(ni)芯(xin)(xin)(xin)片(pian)可(ke)(ke)以(yi)(yi)將這(zhe)些(xie)信(xin)(xin)(xin)(xin)(xin)(xin)息轉換為適合傳(chuan)輸的(de)電信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)，例如通過(guo)調制技術將基帶信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)轉換為頻帶信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)。此外，模(mo)(mo)擬(ni)芯(xin)(xin)(xin)片(pian)還可(ke)(ke)以(yi)(yi)對信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)進(jin)(jin)行(xing)放大(da)(da)和濾波(bo)，以(yi)(yi)增(zeng)強信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)的(de)穩(wen)定性和可(ke)(ke)靠性。其(qi)次，在(zai)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)接收(shou)端，模(mo)(mo)擬(ni)芯(xin)(xin)(xin)片(pian)同樣起到(dao)關鍵(jian)作(zuo)用(yong)(yong)。接收(shou)到(dao)的(de)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)通常會受到(dao)噪(zao)(zao)聲和干擾的(de)影(ying)響，這(zhe)時模(mo)(mo)擬(ni)芯(xin)(xin)(xin)片(pian)可(ke)(ke)以(yi)(yi)通過(guo)放大(da)(da)、濾波(bo)等(deng)技術對信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)進(jin)(jin)行(xing)預處(chu)理(li)(li)，提高信(xin)(xin)(xin)(xin)(xin)(xin)噪(zao)(zao)比(bi)，使得信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)能(neng)(neng)夠(gou)被(bei)準確無誤(wu)地解(jie)碼。在(zai)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)處(chu)理(li)(li)環節，模(mo)(mo)擬(ni)芯(xin)(xin)(xin)片(pian)可(ke)(ke)以(yi)(yi)完成多種任務，如濾波(bo)、放大(da)(da)、混頻、解(jie)調等(deng)。這(zhe)些(xie)處(chu)理(li)(li)步驟能(neng)(neng)夠(gou)將接收(shou)到(dao)的(de)信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)轉換回原(yuan)始(shi)信(xin)(xin)(xin)(xin)(xin)(xin)息，或者對信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)進(jin)(jin)行(xing)進(jin)(jin)一步的(de)分(fen)析和處(chu)理(li)(li)。工(gong)業模(mo)(mo)擬(ni)芯(xin)(xin)(xin)片(pian)能(neng)(neng)夠(gou)將現實(shi)世界中(zhong)的(de)物(wu)理(li)(li)量轉換為計算(suan)機可(ke)(ke)處(chu)理(li)(li)的(de)數字信(xin)(xin)(xin)(xin)(xin)(xin)號(hao)(hao)(hao)(hao)(hao)，實(shi)現智能(neng)(neng)化的(de)數據采集。北京通用(yong)(yong)模(mo)(mo)擬(ni)芯(xin)(xin)(xin)片(pian)生產廠家(jia)

工(gong)業(ye)模擬(ni)芯片(pian)能夠將傳感器采集的模擬(ni)信(xin)號轉換為數字(zi)信(xin)號，為后續(xu)處理(li)和分析提供基(ji)礎。北京通用模擬(ni)芯片(pian)生(sheng)產(chan)廠家

在(zai)(zai)(zai)無(wu)(wu)(wu)(wu)線(xian)通(tong)信(xin)和(he)無(wu)(wu)(wu)(wu)線(xian)傳(chuan)感(gan)(gan)器(qi)網(wang)絡中，半導(dao)體(ti)模(mo)(mo)擬(ni)芯(xin)片(pian)(pian)(pian)(pian)發揮著(zhu)至關(guan)重要的作用(yong)。它(ta)們主要負責處(chu)(chu)理(li)(li)(li)和(he)轉(zhuan)換(huan)信(xin)號，以(yi)實(shi)現無(wu)(wu)(wu)(wu)線(xian)傳(chuan)輸(shu)和(he)接收數據(ju)(ju)(ju)的目的。首(shou)先，半導(dao)體(ti)模(mo)(mo)擬(ni)芯(xin)片(pian)(pian)(pian)(pian)在(zai)(zai)(zai)無(wu)(wu)(wu)(wu)線(xian)通(tong)信(xin)中扮演了(le)關(guan)鍵角色。在(zai)(zai)(zai)發送端(duan)，模(mo)(mo)擬(ni)芯(xin)片(pian)(pian)(pian)(pian)將(jiang)音頻或(huo)數據(ju)(ju)(ju)信(xin)號轉(zhuan)換(huan)為適合無(wu)(wu)(wu)(wu)線(xian)傳(chuan)輸(shu)的信(xin)號，如射(she)頻（RF）或(huo)微(wei)波信(xin)號。在(zai)(zai)(zai)接收端(duan)，模(mo)(mo)擬(ni)芯(xin)片(pian)(pian)(pian)(pian)則負責將(jiang)接收到的無(wu)(wu)(wu)(wu)線(xian)信(xin)號轉(zhuan)換(huan)回原始信(xin)號，以(yi)便進行(xing)處(chu)(chu)理(li)(li)(li)和(he)解析(xi)。此外，半導(dao)體(ti)模(mo)(mo)擬(ni)芯(xin)片(pian)(pian)(pian)(pian)還在(zai)(zai)(zai)無(wu)(wu)(wu)(wu)線(xian)傳(chuan)感(gan)(gan)器(qi)網(wang)絡中起到重要作用(yong)。這些芯(xin)片(pian)(pian)(pian)(pian)通(tong)常被(bei)集(ji)成在(zai)(zai)(zai)傳(chuan)感(gan)(gan)器(qi)節點中，用(yong)于采集(ji)和(he)處(chu)(chu)理(li)(li)(li)傳(chuan)感(gan)(gan)器(qi)數據(ju)(ju)(ju)。例(li)如，溫(wen)度、濕度、壓力(li)等傳(chuan)感(gan)(gan)器(qi)可以(yi)將(jiang)環境(jing)參數轉(zhuan)換(huan)為電(dian)信(xin)號，然后由模(mo)(mo)擬(ni)芯(xin)片(pian)(pian)(pian)(pian)進行(xing)放大、濾波和(he)數字(zi)化處(chu)(chu)理(li)(li)(li)。這些處(chu)(chu)理(li)(li)(li)后的數據(ju)(ju)(ju)可以(yi)通(tong)過無(wu)(wu)(wu)(wu)線(xian)方式傳(chuan)輸(shu)到主節點或(huo)數據(ju)(ju)(ju)中心進行(xing)進一步的分析(xi)和(he)處(chu)(chu)理(li)(li)(li)。北京通(tong)用(yong)模(mo)(mo)擬(ni)芯(xin)片(pian)(pian)(pian)(pian)生(sheng)產廠家

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