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光明區高性價比電源管理芯片品牌排行榜

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朗瑞(rui)半導(dao)體是(shi)推出的LR4054電(dian)(dian)(dian)池(chi)(chi)管(guan)理(li)(li)芯片(pian)(pian)是(shi)一種(zhong)電(dian)(dian)(dian)源管(guan)理(li)(li)芯片(pian)(pian),是(shi)一款完(wan)整的單節鋰離(li)子(zi)電(dian)(dian)(dian)池(chi)(chi)用(yong)(yong)恒定(ding)電(dian)(dian)(dian)流(liu)(liu)(liu)/ 恒定(ding)電(dian)(dian)(dian)壓(ya)(ya)線性充(chong)電(dian)(dian)(dian)器。其中SOT封裝與(yu)較少的外部(bu)元(yuan)器件(jian)數目使得(de)LR4054成為便(bian)攜式應用(yong)(yong)的理(li)(li)想選擇。而且LR4054是(shi)專為在 USB 電(dian)(dian)(dian)源規范內工作(zuo)(zuo)而設計(ji)的電(dian)(dian)(dian)源管(guan)理(li)(li)芯片(pian)(pian)。由(you)于采用(yong)(yong)內部(bu)MOSFET構架(jia), 所以不需(xu)要外部(bu)檢測電(dian)(dian)(dian)阻器和(he)隔離(li)二(er)極管(guan)。熱反饋可(ke)對充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)(liu)進行調節以便(bian)在大功率操作(zuo)(zuo)或高環境溫(wen)度條(tiao)件(jian)下對芯片(pian)(pian)溫(wen)度加(jia)以限制。該款電(dian)(dian)(dian)池(chi)(chi)管(guan)理(li)(li)芯片(pian)(pian)充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)壓(ya)(ya)固(gu)定(ding)為4.2V,而充(chong)電(dian)(dian)(dian)電(dian)(dian)(dian)流(liu)(liu)(liu)可(ke)通過一個電(dian)(dian)(dian)阻器進行外部(bu)設置。LDO作(zuo)(zuo)為一種(zhong)常(chang)見的電(dian)(dian)(dian)源管(guan)理(li)(li)芯片(pian)(pian),它輸入與(yu)輸出的壓(ya)(ya)差很小,在電(dian)(dian)(dian)子(zi)硬件(jian)設備領域中具有重要意義。光(guang)明(ming)區高性價比電(dian)(dian)(dian)源管(guan)理(li)(li)芯片(pian)(pian)品牌排行榜

光明區高性價比電源管理芯片品牌排行榜,電源管理芯片

電(dian)源(yuan)管(guan)理芯(xin)片(pian)在電(dian)路中(zhong)具(ju)有重要的(de)(de)作(zuo)用,低壓(ya)(ya)(ya)(ya)差線(xian)性穩(wen)壓(ya)(ya)(ya)(ya)器(LDO)是電(dian)源(yuan)管(guan)理芯(xin)片(pian)的(de)(de)一種(zhong),朗(lang)瑞半(ban)導(dao)體(ti)是專(zhuan)業(ye)的(de)(de)低壓(ya)(ya)(ya)(ya)差線(xian)性穩(wen)壓(ya)(ya)(ya)(ya)器廠商,公司具(ju)有多(duo)種(zhong)規(gui)格、型號的(de)(de)LDO產品(pin),多(duo)種(zhong)不同規(gui)格的(de)(de)低壓(ya)(ya)(ya)(ya)差線(xian)性穩(wen)壓(ya)(ya)(ya)(ya)器產品(pin)用于應對(dui)不同的(de)(de)應用場(chang)景(jing)(jing),產品(pin)覆蓋范圍較大(da),基本目前(qian)市場(chang)上常見的(de)(de)工業(ye)儀器儀表、移動(dong)便攜(xie)式(shi)設備(bei)、智能(neng)(neng)家(jia)居(ju)、物聯網設備(bei)、消(xiao)費電(dian)子(zi)產品(pin)中(zhong),低壓(ya)(ya)(ya)(ya)差線(xian)性穩(wen)壓(ya)(ya)(ya)(ya)器都能(neng)(neng)得到(dao)良好(hao)的(de)(de)運(yun)用,朗(lang)瑞半(ban)導(dao)體(ti)通過深入市場(chang)的(de)(de)調研,總結了當下市場(chang)上LDO比(bi)較普(pu)遍的(de)(de)問題進(jin)行改進(jin),從(cong)客戶(hu)的(de)(de)應用場(chang)景(jing)(jing)分析,解(jie)決了大(da)部分客戶(hu)擔憂的(de)(de)負載電(dian)路短(duan)(duan)路問題,集成了短(duan)(duan)路保護功(gong)能(neng)(neng),保證在短(duan)(duan)路狀態下,芯(xin)片(pian)自身(shen)輸(shu)出關(guan)斷。以及很多(duo)客戶(hu)場(chang)景(jing)(jing)存在的(de)(de)多(duo)次通斷電(dian)問題導(dao)致(zhi)芯(xin)片(pian)燒毀,我們的(de)(de)芯(xin)片(pian)對(dui)此做了防過沖(chong)處理,可以保障產品(pin)穩(wen)定(ding)使用。雨(yu)花臺區高性價比(bi)電(dian)源(yuan)管(guan)理芯(xin)片(pian)怎么運(yun)用LR4054系列電(dian)源(yuan)管(guan)理芯(xin)片(pian)的(de)(de)輸(shu)出精度較高 ,可提高設備(bei)的(de)(de)性能(neng)(neng)和穩(wen)定(ding)性。

光明區高性價比電源管理芯片品牌排行榜,電源管理芯片

穩(wen)(wen)(wen)壓(ya)(ya)(ya)、過(guo)載保(bao)護一體(ti)化設計——朗瑞(rui)半(ban)導(dao)體(ti)是專(zhuan)業的(de)(de)電(dian)(dian)源管理芯片廠(chang)家,LR8341系(xi)(xi)列和LR8103系(xi)(xi)列低(di)壓(ya)(ya)(ya)差線(xian)性(xing)穩(wen)(wen)(wen)壓(ya)(ya)(ya)器(qi)(qi)(qi)。我(wo)(wo)們(men)的(de)(de)低(di)壓(ya)(ya)(ya)差線(xian)性(xing)穩(wen)(wen)(wen)壓(ya)(ya)(ya)器(qi)(qi)(qi)采用了穩(wen)(wen)(wen)壓(ya)(ya)(ya)和過(guo)載保(bao)護一體(ti)化的(de)(de)設計,能夠為您的(de)(de)電(dian)(dian)路提供更加穩(wen)(wen)(wen)定(ding)(ding)和安(an)全(quan)的(de)(de)電(dian)(dian)源管理。在電(dian)(dian)路工(gong)作時(shi)(shi),我(wo)(wo)們(men)的(de)(de)低(di)壓(ya)(ya)(ya)差線(xian)性(xing)穩(wen)(wen)(wen)壓(ya)(ya)(ya)器(qi)(qi)(qi)會自(zi)動調節(jie)電(dian)(dian)壓(ya)(ya)(ya),確保(bao)電(dian)(dian)壓(ya)(ya)(ya)輸出(chu)(chu)的(de)(de)穩(wen)(wen)(wen)定(ding)(ding)性(xing)。同時(shi)(shi),它還具有多重保(bao)護機(ji)制,能夠在出(chu)(chu)現異常情況時(shi)(shi)自(zi)動斷電(dian)(dian),避免對設備和用戶造(zao)成損害。如果您希望(wang)保(bao)障設備的(de)(de)安(an)全(quan)性(xing)和穩(wen)(wen)(wen)定(ding)(ding)性(xing),選(xuan)擇我(wo)(wo)們(men)的(de)(de)低(di)壓(ya)(ya)(ya)差線(xian)性(xing)穩(wen)(wen)(wen)壓(ya)(ya)(ya)器(qi)(qi)(qi)是明智的(de)(de)選(xuan)擇。

朗(lang)瑞半導體電(dian)源管(guan)(guan)(guan)理(li)芯片(pian)(pian)可(ke)(ke)以(yi)(yi)在(zai)移(yi)(yi)動設(she)備(bei)中應(ying)用(yong)。如果您是(shi)一(yi)個創造(zao)(zao)者、制造(zao)(zao)商或技術愛好(hao)者,您需要一(yi)個高質(zhi)量、可(ke)(ke)靠的(de)(de)(de)電(dian)源管(guan)(guan)(guan)理(li)芯片(pian)(pian)來確保您的(de)(de)(de)產品在(zai)使用(yong)期間能(neng)夠保持良好(hao)的(de)(de)(de)性(xing)能(neng),那(nei)么你(ni)可(ke)(ke)以(yi)(yi)選擇LR4054系列電(dian)池管(guan)(guan)(guan)理(li)芯片(pian)(pian)。我們(men)的(de)(de)(de)電(dian)池管(guan)(guan)(guan)理(li)芯片(pian)(pian)采(cai)用(yong)SOT封裝的(de)(de)(de)完整(zheng)線(xian)性(xing)充(chong)(chong)電(dian)器,無(wu)需MOSFET、檢(jian)測電(dian)阻器和隔離二極管(guan)(guan)(guan),可(ke)(ke)以(yi)(yi)為您的(de)(de)(de)移(yi)(yi)動設(she)備(bei)提(ti)供高效、安全(quan)和可(ke)(ke)靠的(de)(de)(de)充(chong)(chong)電(dian)體驗(yan)。該(gai)款(kuan)電(dian)池管(guan)(guan)(guan)理(li)芯片(pian)(pian)輸入電(dian)壓(ya)范圍4.2V-6V,輸出(chu)精度高達(da)±1%。您使用(yong)的(de)(de)(de)多種(zhong)類型(xing)的(de)(de)(de)移(yi)(yi)動設(she)備(bei),我們(men)的(de)(de)(de)電(dian)池管(guan)(guan)(guan)理(li)芯片(pian)(pian)可(ke)(ke)以(yi)(yi)提(ti)供良好(hao)的(de)(de)(de)充(chong)(chong)電(dian)效果。低壓(ya)差線(xian)性(xing)穩壓(ya)器是(shi)電(dian)源管(guan)(guan)(guan)理(li)芯片(pian)(pian)的(de)(de)(de)一(yi)種(zhong),朗(lang)瑞半導體擁有(you)多種(zhong)不同規格、類型(xing)的(de)(de)(de)產品。

光明區高性價比電源管理芯片品牌排行榜,電源管理芯片

低(di)(di)壓(ya)(ya)(ya)(ya)差(cha)線性穩(wen)(wen)(wen)壓(ya)(ya)(ya)(ya)器(qi)是一(yi)種(zhong)電(dian)(dian)(dian)源(yuan)(yuan)管(guan)(guan)理芯片,該種(zhong)電(dian)(dian)(dian)源(yuan)(yuan)管(guan)(guan)理芯片具(ju)有(you)以(yi)(yi)下(xia)(xia)優點:低(di)(di)噪聲(sheng),低(di)(di)壓(ya)(ya)(ya)(ya)差(cha)線性穩(wen)(wen)(wen)壓(ya)(ya)(ya)(ya)器(qi)的(de)內部電(dian)(dian)(dian)流和(he)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)的(de)波(bo)動(dong)比(bi)較(jiao)小(xiao),因(yin)此(ci)輸(shu)出(chu)(chu)(chu)的(de)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)波(bo)動(dong)也很(hen)小(xiao),可(ke)(ke)以(yi)(yi)有(you)效的(de)減少在電(dian)(dian)(dian)子設(she)備中使用產(chan)生(sheng)噪聲(sheng)干(gan)擾;穩(wen)(wen)(wen)定性好,低(di)(di)壓(ya)(ya)(ya)(ya)差(cha)線性穩(wen)(wen)(wen)壓(ya)(ya)(ya)(ya)器(qi)可(ke)(ke)以(yi)(yi)進行快速(su)的(de)自(zi)我調節,因(yin)此(ci)其可(ke)(ke)以(yi)(yi)適(shi)應不同工作(zuo)場景下(xia)(xia)電(dian)(dian)(dian)源(yuan)(yuan)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)的(de)變化,即使在輸(shu)入電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)變化比(bi)較(jiao)大的(de)場景下(xia)(xia),低(di)(di)壓(ya)(ya)(ya)(ya)差(cha)線性穩(wen)(wen)(wen)壓(ya)(ya)(ya)(ya)器(qi)同樣可(ke)(ke)以(yi)(yi)保持(chi)穩(wen)(wen)(wen)定的(de)輸(shu)出(chu)(chu)(chu)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya);兼容(rong)性好,低(di)(di)壓(ya)(ya)(ya)(ya)差(cha)線性穩(wen)(wen)(wen)壓(ya)(ya)(ya)(ya)器(qi)可(ke)(ke)以(yi)(yi)兼容(rong)不同的(de)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)等級,可(ke)(ke)以(yi)(yi)與各(ge)類(lei)電(dian)(dian)(dian)子設(she)備兼容(rong),提供(gong)設(she)備所(suo)需的(de)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)輸(shu)出(chu)(chu)(chu),確保電(dian)(dian)(dian)子設(she)備的(de)安全和(he)可(ke)(ke)靠性。LDO作(zuo)為(wei)一(yi)種(zhong)電(dian)(dian)(dian)源(yuan)(yuan)管(guan)(guan)理芯片,具(ju)有(you)不受噪聲(sheng)和(he)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)波(bo)動(dong)、保持(chi)輸(shu)出(chu)(chu)(chu)電(dian)(dian)(dian)壓(ya)(ya)(ya)(ya)穩(wen)(wen)(wen)定的(de)能力。惠山區電(dian)(dian)(dian)源(yuan)(yuan)管(guan)(guan)理芯片多少錢

LR4054系列電源管理芯片(pian)具有熱調節功能,可以在無過熱危險的情況下(xia)實現充電速(su)率(lv)的提高(gao)(gao)。光明區(qu)高(gao)(gao)性價(jia)比(bi)電源管理芯片(pian)品(pin)牌排行榜

朗(lang)瑞半導(dao)體LR4054系列電(dian)(dian)(dian)源管(guan)(guan)(guan)理(li)(li)芯(xin)片(pian)(pian)還(huan)具(ju)有高(gao)精度(du)的(de)(de)(de)輸(shu)出,輸(shu)出精度(du)為(wei)±1%。這可(ke)以(yi)確(que)保充電(dian)(dian)(dian)電(dian)(dian)(dian)流和(he)(he)(he)(he)輸(shu)出電(dian)(dian)(dian)壓的(de)(de)(de)準確(que)性(xing),從(cong)而避(bi)免(mian)因(yin)輸(shu)出電(dian)(dian)(dian)壓和(he)(he)(he)(he)電(dian)(dian)(dian)流不穩定而引(yin)起(qi)的(de)(de)(de)問題。我(wo)們的(de)(de)(de)電(dian)(dian)(dian)池(chi)(chi)管(guan)(guan)(guan)理(li)(li)芯(xin)片(pian)(pian)還(huan)具(ju)有導(dao)通電(dian)(dian)(dian)阻為(wei)600mΩ,使得電(dian)(dian)(dian)池(chi)(chi)的(de)(de)(de)內部電(dian)(dian)(dian)阻降低,延長(chang)了(le)電(dian)(dian)(dian)池(chi)(chi)的(de)(de)(de)使用壽命。同(tong)事該款(kuan)電(dian)(dian)(dian)池(chi)(chi)管(guan)(guan)(guan)理(li)(li)芯(xin)片(pian)(pian)采用了(le)高(gao)質量的(de)(de)(de)材料和(he)(he)(he)(he)先進的(de)(de)(de)制(zhi)造(zao)工藝(yi),以(yi)確(que)保其(qi)(qi)可(ke)靠(kao)(kao)性(xing)和(he)(he)(he)(he)耐用性(xing)。產品(pin)目前經過多次嚴(yan)格的(de)(de)(de)測(ce)試和(he)(he)(he)(he)驗證,以(yi)確(que)保其(qi)(qi)穩定性(xing)和(he)(he)(he)(he)可(ke)靠(kao)(kao)性(xing)。我(wo)們的(de)(de)(de)電(dian)(dian)(dian)池(chi)(chi)管(guan)(guan)(guan)理(li)(li)芯(xin)片(pian)(pian)具(ju)有出色的(de)(de)(de)安全性(xing)和(he)(he)(he)(he)可(ke)靠(kao)(kao)性(xing),電(dian)(dian)(dian)池(chi)(chi)管(guan)(guan)(guan)理(li)(li)芯(xin)片(pian)(pian)可(ke)以(yi)幫助您更好地保護設備和(he)(he)(he)(he)用戶的(de)(de)(de)安全,同(tong)時延長(chang)設備的(de)(de)(de)使用壽命。光(guang)明區高(gao)性(xing)價比電(dian)(dian)(dian)源管(guan)(guan)(guan)理(li)(li)芯(xin)片(pian)(pian)品(pin)牌(pai)排行榜

朗(lang)瑞(rui)半(ban)(ban)導體(ti)技術(南(nan)京(jing))有(you)限公司致力于電子元器件,以科技創新實現(xian)高質量管(guan)(guan)理(li)的(de)追(zhui)求。朗(lang)瑞(rui)半(ban)(ban)導體(ti)擁有(you)一支(zhi)經驗豐富、技術創新的(de)專(zhuan)業研發(fa)(fa)團隊,以高度的(de)專(zhuan)注和(he)執著為客戶(hu)(hu)提供(gong)電源管(guan)(guan)理(li)芯(xin)片,LDO,觸控識別芯(xin)片,充(chong)電芯(xin)片。朗(lang)瑞(rui)半(ban)(ban)導體(ti)繼續堅(jian)定不移(yi)地走高質量發(fa)(fa)展道(dao)路,既要(yao)(yao)實現(xian)基本(ben)面(mian)穩定增長,又(you)要(yao)(yao)聚(ju)焦(jiao)關鍵領域,實現(xian)轉型再突破(po)。朗(lang)瑞(rui)半(ban)(ban)導體(ti)始(shi)終關注電子元器件市場,以敏銳的(de)市場洞(dong)察力,實現(xian)與客戶(hu)(hu)的(de)成長共贏。

本文來(lai)自宜(yi)興市恒通(tong)風機(ji)有(you)限公(gong)司://vijoo.com.cn/Article/24b75699219.html

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記憶 等 64 人贊同該回答(da)

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安徽國產交叉導軌哪個牌子好
第2樓
注(zhu): 等 27 人贊(zan)同該回答

注:環境超過100C時,請與順祿公司(si)進(jin)行磋(cuo)商。fw:負荷(he)系(xi)數(shu)通常,做往復運動的機械在運轉中(zhong)大(da)多伴隨著(zhu)振動或(huo)沖(chong)擊,特別是(shi)對高速運轉時發生(sheng)的震動或(huo)經常反復啟動停止時的沖(chong)擊等。要(yao)全部(bu)正確地進(jin)行計算(suan)是(shi)非常困難 。

Gxgs2288液位變送器批發公司
第3樓
常規 等 54 人贊同該(gai)回答

常規差(cha)壓變送器(qi)現場調整及檢(jian)定工(gong)作(zuo)進行的過程(cheng)中(zhong)應(ying)(ying)當施(shi)行的措施(shi)。數量(liang)眾多(duo)(duo)的壓力變送器(qi)都(dou)是(shi)在(zai)工(gong)業(ye)生產流程(cheng)控(kong)制領域中(zhong)得到(dao)應(ying)(ying)用,大(da)多(duo)(duo)數情況都(dou)是(shi)在(zai)施(shi)工(gong)現場中(zhong)開展(zhan)。煉油(you)以及化(hua)工(gong)、冶金等行業(ye)當中(zhong),差(cha)壓變送器(qi)得到(dao)有的應(ying)(ying) 。

嘉興國產制冷劑批發
第4樓
熱泵(beng) 等 59 人贊(zan)同該回答

熱泵發(fa)展(zhan)的(de)驅動力 高度政(zheng)策驅動的(de)市場,**初由煤改電帶動全國示范項目;在(zai)雙碳大環境下,政(zheng)策要(yao)求(qiu)在(zai)國內更大范圍內推廣應用;發(fa)改委(wei)(wei)聯合(he)其他6部委(wei)(wei)發(fa)布“綠色工業指導目錄”,包含空氣源熱泵的(de)要(yao)求(qiu);發(fa)改委(wei)(wei)綠色計(ji) 。

宿遷光伏組件封裝設備維保
第5樓
光伏(fu) 等 97 人贊同該回(hui)答

光伏組件封裝設(she)(she)備(bei)(bei)(bei)的(de)安(an)全(quan)(quan)標準和規(gui)范對設(she)(she)備(bei)(bei)(bei)生命周期(qi)的(de)不同階段(duan)進行了(le)規(gui)范。根據(ju)搜(sou)索結(jie)果(guo),以下是一(yi)些相關的(de)規(gui)范和階段(duan):設(she)(she)計階段(duan):在光伏組件封裝設(she)(she)備(bei)(bei)(bei)的(de)設(she)(she)計階段(duan),安(an)全(quan)(quan)標準和規(gui)范要求制造商考(kao)慮設(she)(she)備(bei)(bei)(bei)的(de)安(an)全(quan)(quan)性能和可靠性 。

貴州傳感器M12/M8連接器廠家
第6樓
M1 等 82 人贊同(tong)該回答(da)

M12圓形連(lian)接器(qi)(qi)標(biao)準品已經成為工廠和(he)生(sheng)產自(zi)動(dong)化,以及機器(qi)(qi)人領域的(de)基礎(chu)配置。主(zhu)要應用(yong)于現場連(lian)接接線,例如傳感器(qi)(qi)和(he)執行器(qi)(qi)。基于不同類(lei)型的(de)扣,適(shi)用(yong)于各類(lei)協議(yi)的(de)集成自(zi)動(dong)化組件(jian),包括Ethernet、Profi 。

內蒙銑床購買
第7樓
公司 等 67 人贊同該回答(da)

公(gong)司是集開發設計與制(zhi)造為一體的(de)現(xian)代機械制(zhi)造高新技(ji)術企(qi)業(ye),是國(guo)(guo)內(nei)(nei)企(qi)業(ye)振興技(ji)術改造先(xian)進單(dan)位(wei),中國(guo)(guo)21315質量(liang)信譽(yu)AAA企(qi)業(ye),是國(guo)(guo)內(nei)(nei)原生(sheng)產銑(xian)床的(de)定點單(dan)位(wei),是國(guo)(guo)內(nei)(nei)摩擦焊機的(de)專業(ye)生(sheng)產廠家,1995年(nian)公(gong)司通(tong)過I 。

豐臺區代理拌粉廣告
第8樓
羊) 等 81 人贊同該回答

羊)乳及(ji)其(qi)制品;中文名:乳制品;種類:煉乳、奶(nai)油(you)、干(gan)酪;外(wai)文名:dairyproducts;、烘焙包裝、奶(nai)茶(cha)中文名:奶(nai)茶(cha);主要(yao)食(shi)用功效:去油(you)膩,助消化;外(wai)文名:Teawithmilk;是否含防腐劑:否 。

硫氧化博斯氏菌菌種
第9樓
哈維 等 32 人贊同(tong)該回答(da)

哈維弧(hu)菌(jun)(jun)BB170菌(jun)(jun)株具有(you)抑制藻類生(sheng)長的能力(li)。藻類是海洋(yang)中(zhong)常見的浮(fu)游植物,它們的生(sheng)長速度非常快,容易形(xing)成水華等現象(xiang),對海洋(yang)生(sheng)態系(xi)統(tong)造成嚴重影響(xiang)。哈維弧(hu)菌(jun)(jun)BB170菌(jun)(jun)株可以通過分泌(mi)生(sheng)成素來抑制藻類的生(sheng)長 。

肇慶天然氣壓力管道維修
第10樓
根據 等 16 人贊同該回答

根據(ju)國家質(zhi)量檢(jian)(jian)驗檢(jian)(jian)疫(yi)總局2014年10月30日關于修訂《特種設備目錄(lu)》的(de)公(gong)告(2014年第114號(hao)),壓力管道(dao)新(xin)定義(yi)為:壓力管道(dao),是指利用(yong)一(yi)定的(de)壓力,用(yong)于輸送氣體(ti)或者液體(ti)的(de)管狀設備,其范圍規定為比較高 。

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