萊蕪小型電捕焦油器供應商
隨(sui)著科(ke)學技術(shu)和經濟的(de)(de)不斷發展,蜂(feng)窩(wo)式電(dian)(dian)(dian)(dian)(dian)捕(bu)焦(jiao)油器(qi)(qi)(qi)的(de)(de)也在(zai)不斷的(de)(de)創新,我們都知道(dao)蜂(feng)窩(wo)式電(dian)(dian)(dian)(dian)(dian)捕(bu)焦(jiao)油器(qi)(qi)(qi)操作(zuo)性能的(de)(de)因素很(hen)多(duo),選型(xing)時請告(gao)知粉塵與霧滴的(de)(de)密度、粘度、比電(dian)(dian)(dian)(dian)(dian)阻、氣(qi)體(ti)溫度、壓(ya)力、濕(shi)度、流速(su)與雜濃度等。1、蜂(feng)窩(wo)式電(dian)(dian)(dian)(dian)(dian)捕(bu)焦(jiao)油器(qi)(qi)(qi)的(de)(de)優勢 電(dian)(dian)(dian)(dian)(dian)捕(bu)焦(jiao)油器(qi)(qi)(qi)與機械除焦(jiao)油器(qi)(qi)(qi)相比,具有捕(bu)焦(jiao)油效率高、阻力損失小(xiao)、氣(qi)體(ti)處理(li)量大(da)等特點,不僅可保(bao)證后續(xu)工序對(dui)氣(qi)體(ti)質量的(de)(de)要(yao)求,提高產(chan)品回(hui)收(shou)率,而且可明顯(xian)改善操作(zuo)環境。蜂(feng)窩(wo)式電(dian)(dian)(dian)(dian)(dian)捕(bu)焦(jiao)油器(qi)(qi)(qi)工作(zuo)機理(li)2、氣(qi)體(ti)的(de)(de)放(fang)電(dian)(dian)(dian)(dian)(dian)過程: 在(zai)通常情況(kuang)下氣(qi)體(ti)是不導電(dian)(dian)(dian)(dian)(dian)的(de)(de),但(dan)在(zai)高壓(ya)電(dian)(dian)(dian)(dian)(dian)場的(de)(de)作(zuo)用下氣(qi)體(ti)內部的(de)(de)電(dian)(dian)(dian)(dian)(dian)子便會獲得足夠的(de)(de)能量成為(wei)自(zi)由電(dian)(dian)(dian)(dian)(dian)子而導電(dian)(dian)(dian)(dian)(dian),被稱為(wei)自(zi)發性電(dian)(dian)(dian)(dian)(dian)離(li)現(xian)象。氣(qi)體(ti)的(de)(de)自(zi)發性電(dian)(dian)(dian)(dian)(dian)離(li)是建立在(zai)非均勻性電(dian)(dian)(dian)(dian)(dian)場中(zhong)。在(zai)均勻性電(dian)(dian)(dian)(dian)(dian)場中(zhong),隨(sui)著電(dian)(dian)(dian)(dian)(dian)壓(ya)的(de)(de)增加,只要(yao)其(qi)間(jian)(jian)任(ren)何(he)一點發生電(dian)(dian)(dian)(dian)(dian)離(li),兩極間(jian)(jian)將立即充(chong)滿帶電(dian)(dian)(dian)(dian)(dian)離(li)子,整個空間(jian)(jian)的(de)(de)氣(qi)體(ti)被擊穿。此時電(dian)(dian)(dian)(dian)(dian)流急(ji)劇(ju)增加而形成火(huo)花放(fang)電(dian)(dian)(dian)(dian)(dian)。而在(zai)非均勻性電(dian)(dian)(dian)(dian)(dian)場中(zhong),電(dian)(dian)(dian)(dian)(dian)場強度則隨(sui)兩極間(jian)(jian)的(de)(de)距離(li)增大(da)而迅速(su)下降。萊蕪小(xiao)型(xing)電(dian)(dian)(dian)(dian)(dian)捕(bu)焦(jiao)油器(qi)(qi)(qi)供(gong)應商
電(dian)(dian)(dian)捕(bu)焦(jiao)油(you)器(qi)設備是(shi)(shi)除塵、脫硫(liu)的好幫(bang)手,普遍應用于(yu)煙氣處理,因此是(shi)(shi)是(shi)(shi)煤(mei)氣凈(jing)化(hua)環節中(zhong)相(xiang)當重要(yao)的設備,對于(yu)煤(mei)氣質(zhi)量起到(dao)至關(guan)重要(yao)的作用。1、同(tong)心(xin)(xin)(xin)(xin)圓(yuan)(yuan)電(dian)(dian)(dian)捕(bu)焦(jiao)油(you)器(qi):它由數個不同(tong)直(zhi)徑的鋼(gang)板圓(yuan)(yuan)筒組(zu)成,以同(tong)一垂(chui)直(zhi)軸為(wei)圓(yuan)(yuan)心(xin)(xin)(xin)(xin),并以同(tong)一間(jian)距套在(zai)一起而組(zu)成沉淀極(ji)(ji)。由于(yu)電(dian)(dian)(dian)暈(yun)極(ji)(ji)之(zhi)間(jian)的同(tong)性相(xiang)斥.會(hui)(hui)使電(dian)(dian)(dian)場(chang)出現(xian)空位(wei)小空洞(dong),即場(chang)強洞(dong)穴(xue)。易造成氣體在(zai)洞(dong)穴(xue)中(zhong)短(duan)路流失,降低捕(bu)集效果,同(tong)時,同(tong)心(xin)(xin)(xin)(xin)圓(yuan)(yuan)電(dian)(dian)(dian)捕(bu)焦(jiao)油(you)器(qi)的制造精(jing)度要(yao)求(qiu)高、安裝調試極(ji)(ji)為(wei)嚴格,在(zai)制造、安裝和運輸中(zhong)較易使同(tong)心(xin)(xin)(xin)(xin)度、水平(ping)度和垂(chui)直(zhi)度產生變(bian)化(hua),均(jun)會(hui)(hui)造成陰陽極(ji)(ji)之(zhi)間(jian)或其它部件(jian)間(jian)產生放電(dian)(dian)(dian)現(xian)象,難以達到(dao)要(yao)求(qiu)的電(dian)(dian)(dian)壓(ya),直(zhi)接影響焦(jiao)油(you)的捕(bu)集效率(lv),還易使電(dian)(dian)(dian)瓷(ci)瓶擊穿毀壞。濰(wei)坊脫硫(liu)脫硝(xiao)電(dian)(dian)(dian)捕(bu)焦(jiao)油(you)器(qi)生產廠(chang)家
就是一(yi)(yi)個(ge)外(wai)殼(ke),煤氣(qi)需要(yao)在(zai)這(zhe)個(ge)里面進行(xing)捕(bu)(bu)捉,氣(qi)體是由(you)下至上的,所以這(zhe)個(ge)外(wai)殼(ke)是呈直筒型的,也有利于設(she)備(bei)(bei)進行(xing)操作(zuo),在(zai)這(zhe)個(ge)外(wai)殼(ke)的里面就是用來凈化(hua)的裝(zhuang)置了,你會發現里面的沉(chen)淀極是柱(zhu)狀的,而且它(ta)們(men)的排列(lie)非常(chang)整(zheng)齊,這(zhe)是一(yi)(yi)個(ge)沉(chen)淀極系(xi)統,然后你會發現還有導線(xian),它(ta)就是電暈極,當(dang)然還有一(yi)(yi)些輔(fu)助的工具(ju),比如控制供電和(he)輸電的裝(zhuang)置等,這(zhe)樣(yang)當(dang)氣(qi)體流經設(she)備(bei)(bei)的時候才能(neng)更好的進行(xing)捕(bu)(bu)捉。現在(zai)的電捕(bu)(bu)焦(jiao)油器已(yi)經是很(hen)完善的設(she)備(bei)(bei)的,能(neng)夠滿(man)足消費者需求,它(ta)的凈化(hua)效率也很(hen)高,能(neng)夠捕(bu)(bu)捉大量的焦(jiao)油,起到良(liang)好的凈化(hua)效果和(he)回收,為了設(she)備(bei)(bei)能(neng)夠更好的使用,適當(dang)的保養和(he)檢測是非常(chang)有必要(yao)的。
電(dian)(dian)捕(bu)焦(jiao)油器(qi)采用結構形式有同(tong)(tong)心圓式、管式和蜂窩式等(deng)三種。無論哪(na)種結構,其工(gong)作原理,即(ji)在金屬導線與金屬管壁〔或極(ji)板〕間施加(jia)高壓直(zhi)流電(dian)(dian),以維持足以使(shi)氣體(ti)產(chan)生電(dian)(dian)離的(de)電(dian)(dian)場,使(shi)陰(yin)陽極(ji)之間形成電(dian)(dian)暈(yun)區 1、工(gong)業(ye)中的(de)選擇: 根(gen)據供電(dian)(dian)極(ji)性的(de)不同(tong)(tong),電(dian)(dian)暈(yun)有陰(yin)電(dian)(dian)暈(yun)和陽電(dian)(dian)暈(yun)之分(fen)。在工(gong)業(ye)生產(chan)中,大多(duo)采用陰(yin)電(dian)(dian)暈(yun),因為在相同(tong)(tong)的(de)條件下(xia),陰(yin)電(dian)(dian)暈(yun)可以獲得比(bi)陽電(dian)(dian)暈(yun)高的(de)電(dian)(dian)流,而且其閃絡(luo)電(dian)(dian)壓也遠比(bi)陽電(dian)(dian)暈(yun)放電(dian)(dian)要高。 2、影(ying)響電(dian)(dian)捕(bu)性能的(de)主要因素(su)(su):由于影(ying)響電(dian)(dian)捕(bu)焦(jiao)油器(qi)操作性能的(de)因素(su)(su)很(hen)多(duo),選型時請(qing)告(gao)知粉塵與霧滴(di)的(de)密度(du)、粘度(du)、比(bi)電(dian)(dian)阻(zu)、氣體(ti)溫度(du)、壓力、濕(shi)度(du)、流速與雜(za)濃(nong)度(du)等(deng)。
管式電(dian)捕(bu)(bu)(bu)(bu)焦(jiao)(jiao)油(you)(you)器(qi):由于(yu)管式電(dian)捕(bu)(bu)(bu)(bu)焦(jiao)(jiao)油(you)(you)器(qi)在(zai)(zai)每個管截(jie)面(mian)內(nei)(nei)形(xing)成等(deng)極間(jian)距電(dian)場,而管與管之(zhi)間(jian)則(ze)是空(kong)位,由管板盲區堵住這(zhe)(zhe)些空(kong)穴(xue),這(zhe)(zhe)就降低了圓筒內(nei)(nei)有效空(kong)間(jian)的(de)利用(yong)率(lv),減少了凈化通(tong)道的(de)截(jie)面(mian)積。這(zhe)(zhe)種型式的(de)電(dian)捕(bu)(bu)(bu)(bu)焦(jiao)(jiao)油(you)(you)器(qi)的(de)鋼(gang)材耗(hao)量較大,但由于(yu)具有制造(zao)容(rong)易、等(deng)極間(jian)距電(dian)場、材料(liao)易得和(he)(he)安(an)裝調(diao)試比(bi)較方便等(deng)優(you)點普遍應用(yong)于(yu)大中型氣體凈化廠(chang)。蜂(feng)窩(wo)式電(dian)捕(bu)(bu)(bu)(bu)焦(jiao)(jiao)油(you)(you)器(qi):由于(yu)蜂(feng)窩(wo)式電(dian)捕(bu)(bu)(bu)(bu)焦(jiao)(jiao)油(you)(you)器(qi)具有結構(gou)緊湊(cou)合理、沒有電(dian)場空(kong)穴(xue)、有效空(kong)間(jian)利用(yong)率(lv)高(gao)、重量輕(qing)、耗(hao)鋼(gang)材少和(he)(he)捕(bu)(bu)(bu)(bu)集特性好(hao)等(deng)優(you)點,但存在(zai)(zai)制造(zao)難度大.在(zai)(zai)運輸安(an)裝過程中易產生誤(wu)差(cha)等(deng)缺點。隨著設備制造(zao)工藝水平的(de)提高(gao),蜂(feng)窩(wo)式電(dian)捕(bu)(bu)(bu)(bu)焦(jiao)(jiao)油(you)(you)器(qi)的(de)優(you)點會越來(lai)越受到人們的(de)重視,必將逐(zhu)步取代同心圓式和(he)(he)管式電(dian)捕(bu)(bu)(bu)(bu)焦(jiao)(jiao)油(you)(you)器(qi)。山東煤礦電(dian)捕(bu)(bu)(bu)(bu)焦(jiao)(jiao)油(you)(you)器(qi)
萊蕪小型電捕焦油器供應(ying)商
在(zai)國(guo)民經濟體系中(zhong)(zhong),機(ji)(ji)械(xie)及行業(ye)設(she)(she)備行業(ye)位(wei)居產(chan)業(ye)鏈中(zhong)(zhong)游,產(chan)品種類繁多,應(ying)用范圍(wei)大,在(zai)制造業(ye)各環節中(zhong)(zhong)具有(you)不可代替的(de)地(di)位(wei)。我(wo)們(men)(men)公司(si)(si)主(zhu)要負責的(de)產(chan)品有(you)電(dian)捕焦(jiao)(jiao)油(you)(you)器(qi),蜂窩體,電(dian)極管,靜電(dian)除塵器(qi),為(wei)行業(ye)上(shang)游、下游提(ti)供(gong)多樣化支持。我(wo)們(men)(men)以(yi)機(ji)(ji)械(xie)及行業(ye)設(she)(she)備內的(de)標(biao)準(zhun)提(ti)供(gong)售(shou)前及售(shou)后(hou)服(fu)務(wu),始(shi)終把客戶的(de)需求(qiu)放在(zai)重(zhong)要的(de)位(wei)置(zhi),竭(jie)力滿足客戶的(de)個性化要求(qiu)的(de)貿易型(xing)(xing)公司(si)(si)。公司(si)(si)具有(you)一(yi)批長(chang)期服(fu)務(wu)于機(ji)(ji)械(xie)及行業(ye)設(she)(she)備行業(ye)的(de)技(ji)術(shu)型(xing)(xing)人才(cai),擁有(you)多年的(de)行業(ye)理論知識與實踐經驗,是(shi)可以(yi)給客戶提(ti)供(gong)技(ji)術(shu)支持與咨詢支持的(de)貿易型(xing)(xing)一(yi)家企業(ye)。我(wo)們(men)(men)是(shi)一(yi)家做電(dian)捕焦(jiao)(jiao)油(you)(you)器(qi),蜂窩體,電(dian)極管,靜電(dian)除塵器(qi)的(de)公司(si)(si),始(shi)終認(ren)為(wei)產(chan)品質(zhi)量、信譽、客戶為(wei)重(zhong)心,秉承著(zhu)用戶至上(shang),服(fu)務(wu)至上(shang)的(de)理念。讓客戶滿意(yi)是(shi)我(wo)們(men)(men)的(de)主(zhu)要目標(biao)。萊蕪(wu)小型(xing)(xing)電(dian)捕焦(jiao)(jiao)油(you)(you)器(qi)供(gong)應(ying)商
淄博永發(fa)(fa)(fa)物資(zi)貿易(yi)有(you)限公(gong)(gong)司(si)是(shi)一(yi)家有(you)著(zhu)雄厚實(shi)(shi)力背景、信(xin)(xin)譽可靠、勵精(jing)(jing)圖治、展望(wang)(wang)未來、有(you)夢(meng)想(xiang)有(you)目標(biao),有(you)組織(zhi)有(you)體系的(de)(de)(de)公(gong)(gong)司(si),堅持于帶領員工(gong)在未來的(de)(de)(de)道路上(shang)大放光明(ming),攜手共畫藍(lan)圖,在山東省等地區的(de)(de)(de)機(ji)械及行(xing)業(ye)設(she)備行(xing)業(ye)中積(ji)累了(le)大批(pi)忠誠(cheng)的(de)(de)(de)客戶(hu)粉絲源,也(ye)收(shou)獲了(le)良好的(de)(de)(de)用戶(hu)口(kou)碑,為公(gong)(gong)司(si)的(de)(de)(de)發(fa)(fa)(fa)展奠定的(de)(de)(de)良好的(de)(de)(de)行(xing)業(ye)基礎,也(ye)希(xi)望(wang)(wang)未來公(gong)(gong)司(si)能成(cheng)為**,努(nu)力為行(xing)業(ye)領域的(de)(de)(de)發(fa)(fa)(fa)展奉獻出自己的(de)(de)(de)一(yi)份力量,我(wo)們相信(xin)(xin)精(jing)(jing)益求精(jing)(jing)的(de)(de)(de)工(gong)作(zuo)態度和不斷的(de)(de)(de)完善創(chuang)新理念(nian)以(yi)及自強不息,斗(dou)志昂揚的(de)(de)(de)的(de)(de)(de)企業(ye)精(jing)(jing)神(shen)將**永發(fa)(fa)(fa)供和您一(yi)起攜手步入輝煌,共創(chuang)佳績,一(yi)直以(yi)來,公(gong)(gong)司(si)貫徹執行(xing)科學(xue)管(guan)理、創(chuang)新發(fa)(fa)(fa)展、誠(cheng)實(shi)(shi)守信(xin)(xin)的(de)(de)(de)方針,員工(gong)精(jing)(jing)誠(cheng)努(nu)力,協(xie)同奮取,以(yi)品質、服務來贏得市場,我(wo)們一(yi)直在路上(shang)!
本文來自宜(yi)興市恒通(tong)風機有限公司://vijoo.com.cn/Article/11f70599283.html
江西(xi)建筑物仿(fang)石漆效果
戶(hu)外仿石(shi)(shi)漆的(de)特點就是外觀(guan)逼真,它可(ke)以(yi)模擬(ni)出(chu)各種不同的(de)石(shi)(shi)材紋理和顏色(se),如大理石(shi)(shi)、花崗巖、青石(shi)(shi)等(deng)等(deng),讓(rang)建筑物(wu)的(de)外觀(guan)更(geng)加美觀(guan)大方(fang)。而且(qie),戶(hu)外仿石(shi)(shi)漆的(de)顏色(se)和紋理可(ke)以(yi)根據客戶(hu)的(de)需求進行定制,滿足(zu)不同建筑物(wu)的(de)裝飾 。
鉭電(dian)(dian)容器漏(lou)電(dian)(dian)流(liu)偏(pian)大導(dao)致實際耐(nai)壓不夠(gou)。此問題(ti)的(de)出現一般都由于鉭電(dian)(dian)容器的(de)實際耐(nai)壓不夠(gou)造成.當電(dian)(dian)容器上(shang)長時(shi)間施加一定場強時(shi),如果其介質層(ceng)的(de)絕緣電(dian)(dian)阻偏(pian)低,此時(shi)產品(pin)的(de)實際漏(lou)電(dian)(dian)流(liu)將(jiang)偏(pian)大.而漏(lou)電(dian)(dian)流(liu)偏(pian)大的(de)產品(pin),實際耐(nai) 。
上(shang)海途悠信(xin)息個人遠程幫(bang)辦虛(xu)擬窗(chuang)口系統介紹(shao):依托“一(yi)網通(tong)辦”、各街鎮(zhen)社(she)區事(shi)務(wu)受理(li)信(xin)息系統建設成(cheng)(cheng)果,以街鎮(zhen)社(she)區事(shi)務(wu)受理(li)運行管理(li)和服務(wu)延伸的(de)需求為(wei)導向,構建一(yi)個數據集成(cheng)(cheng)化,渠道多樣(yang)化的(de)信(xin)息系統,創新社(she)區事(shi)務(wu) 。
純(chun)(chun)銅(tong)(tong)是(shi)玫(mei)瑰紅(hong)色金屬,表(biao)面(mian)形成氧(yang)化銅(tong)(tong)膜后呈紫色,故工業(ye)純(chun)(chun)銅(tong)(tong)常(chang)稱(cheng)紫銅(tong)(tong)或(huo)電解(jie)銅(tong)(tong)。火煉可得99-99.9%的純(chun)(chun)銅(tong)(tong),電解(jie)可以(yi)使銅(tong)(tong)的純(chun)(chun)度達到99.95-99.99%。密度為8-9g/cm3,熔點1083°C。純(chun)(chun)銅(tong)(tong) 。
超高壓食品加工設(she)(she)(she)備(bei)(bei)的(de)操作(zuo)(zuo)技(ji)巧非常重要,直接影(ying)響到加工質量和(he)設(she)(she)(she)備(bei)(bei)的(de)壽命(ming)。以下(xia)是(shi)一些操作(zuo)(zuo)技(ji)巧:1、設(she)(she)(she)備(bei)(bei)的(de)清潔和(he)維(wei)護:定期清洗設(she)(she)(she)備(bei)(bei),保持設(she)(she)(she)備(bei)(bei)的(de)清潔和(he)衛(wei)生,同(tong)時進行設(she)(she)(she)備(bei)(bei)的(de)維(wei)護,保證設(she)(she)(she)備(bei)(bei)的(de)正常運行。2、操作(zuo)(zuo)人(ren)員 。
空氣能(neng)(neng)冷(leng)暖(nuan)機(ji)組(zu)智能(neng)(neng)控制系(xi)統具(ju)有節(jie)(jie)能(neng)(neng)環保的(de)(de)特點。它(ta)采用智能(neng)(neng)化(hua)技術(shu),可以有效降低(di)冷(leng)暖(nuan)機(ji)組(zu)的(de)(de)能(neng)(neng)耗,從而實(shi)現節(jie)(jie)能(neng)(neng)減(jian)排(pai)的(de)(de)目的(de)(de)。同(tong)時,該系(xi)統還(huan)可以通過智能(neng)(neng)化(hua)技術(shu)對冷(leng)暖(nuan)機(ji)組(zu)的(de)(de)運行狀態(tai)進行監(jian)測(ce)和管(guan)理,從而減(jian)少對環境(jing)的(de)(de) 。
自(zi)(zi)流(liu)平(ping)(ping)地面(mian)(mian):在基層(ceng)上,采用具有自(zi)(zi)動流(liu)平(ping)(ping)或稍加(jia)輔(fu)助流(liu)平(ping)(ping)功能的材料(liao),經現場攪拌后攤鋪形(xing)成(cheng)的面(mian)(mian)層(ceng)。常見的自(zi)(zi)流(liu)平(ping)(ping)地面(mian)(mian)有泥(ni)基自(zi)(zi)流(liu)平(ping)(ping)地面(mian)(mian)、樹脂(zhi)自(zi)(zi)流(liu)平(ping)(ping)地面(mian)(mian)及樹脂(zhi)水泥(ni)復合砂漿(jiang)自(zi)(zi)流(liu)平(ping)(ping)地面(mian)(mian)等。自(zi)(zi)流(liu)平(ping)(ping)地坪(ping)工(gong)程面(mian)(mian)涂層(ceng)美(mei)觀,高 。
熱愛喝(he)啤(pi)酒(jiu)(jiu)(jiu)的朋友一(yi)般都知道進(jin)口(kou)(kou)啤(pi)酒(jiu)(jiu)(jiu)歐(ou)洲的比較多一(yi)些,比利時啤(pi)酒(jiu)(jiu)(jiu)、德(de)國啤(pi)酒(jiu)(jiu)(jiu)、荷蘭啤(pi)酒(jiu)(jiu)(jiu)、意(yi)大利啤(pi)酒(jiu)(jiu)(jiu)、美國啤(pi)酒(jiu)(jiu)(jiu)、黑啤(pi)黃(huang)啤(pi)、白(bai)啤(pi)、精釀小麥啤(pi)酒(jiu)(jiu)(jiu)等等。那么商家進(jin)口(kou)(kou)啤(pi)酒(jiu)(jiu)(jiu)報(bao)關(guan)前需要注(zhu)意(yi),我國所有的進(jin)口(kou)(kou)食品,包括所有 。
其實離(li)(li)型紙(zhi)(zhi)(zhi)就是(shi)一(yi)種涂(tu)布(bu)紙(zhi)(zhi)(zhi),它一(yi)般都是(shi)用紙(zhi)(zhi)(zhi)基層(ceng)和離(li)(li)型涂(tu)料層(ceng)構成的(de),與一(yi)般的(de)結構涂(tu)布(bu)紙(zhi)(zhi)(zhi)是(shi)沒什么(me)差別(bie),其差別(bie)就是(shi)在與表層(ceng)有凹(ao)凸形狀的(de)花紋。離(li)(li)型紙(zhi)(zhi)(zhi)一(yi)般分為兩大類,硅系(xi)離(li)(li)型紙(zhi)(zhi)(zhi)與非硅系(xi)離(li)(li)型紙(zhi)(zhi)(zhi)。不同(tong)類型的(de)離(li)(li)型紙(zhi)(zhi)(zhi)其離(li)(li) 。
紙質插孔(kong)式展(zhan)(zhan)示(shi)架是一(yi)種以(yi)紙張為主要材料(liao),通過折疊、切(qie)割、粘貼(tie)等工(gong)藝制成的展(zhan)(zhan)示(shi)用(yong)品。它通常由一(yi)系列的插槽和插孔(kong)組成,通過將不同大小的插孔(kong)組合(he)在一(yi)起,可(ke)以(yi)構建出不同形狀(zhuang)和大小的展(zhan)(zhan)示(shi)架。紙質插孔(kong)式展(zhan)(zhan)示(shi)架具有 。
公共廣播(bo)系統包括(kuo)背(bei)景(jing)音樂(le)和緊(jin)急(ji)廣播(bo)功能,通常結合在(zai)一起,它的對象為公共場所(suo),在(zai)走廊、電梯門(men)口、電梯轎廂、大廳(ting)(ting)(ting)、商場、餐廳(ting)(ting)(ting)、宴(yan)會廳(ting)(ting)(ting)、小區(qu)花園等處(chu)裝(zhuang)設組合式(shi)聲(sheng)柱或分散式(shi)揚聲(sheng)器箱(xiang),平時播(bo)放背(bei)景(jing)音樂(le),當發生(sheng)緊(jin) 。