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SYJZD-988C電工模電數電電拖創新實驗與技能實訓考核實驗室成套設備(帶智能型功率表、功率因數表)
2019-07-23 13:16:54
21628次訪問

電工作業模電數電電拖企業創新進行實驗英文與技巧實踐教學考慮進行實驗英文室一整套的主設備(帶智慧型電工率表、電工率質數表)一、本食品基本特征:

本產品(pin)(pin)是(shi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)工(gong)、模(mo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)、數(shu)(shu)(shu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)拖(tuo)創新(xin)實(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)與(yu)技(ji)能(neng)實(shi)(shi)(shi)(shi)訓考核有機(ji)(ji)的(de)(de)(de)(de)結合(he),做到資源(yuan)(yuan)(yuan)(yuan)(yuan)共享一室(shi)多(duo)用(yong)(yong)(yong)(yong),減少實(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)實(shi)(shi)(shi)(shi)訓指導教(jiao)(jiao)師人員和(he)(he)基(ji)建投入,經(jing)(jing)濟效益顯(xian)著。創新(xin)實(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)項目(mu)包括電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)工(gong)學(xue)(xue)(xue)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)工(gong)原理(li)(li)、模(mo)擬電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子技(ji)術(shu)(shu)、數(shu)(shu)(shu)字(zi)(zi)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)子電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)路、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)拖(tuo)動、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)氣控(kong)(kong)制(zhi)、繼電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)控(kong)(kong)制(zhi)等(deng)(deng)課程(cheng),可(ke)完(wan)成(cheng)交(jiao)直流(liu)、震蕩、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁波電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)層(ceng)(ceng)面(mian)(mian)(mian)(mian)(mian)設(she)計(ji)(ji)(ji)、運算(suan)縮放器、整流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)層(ceng)(ceng)面(mian)(mian)(mian)(mian)(mian)設(she)計(ji)(ji)(ji)、交(jiao)直流(liu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)(ya)縮放電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)層(ceng)(ceng)面(mian)(mian)(mian)(mian)(mian)設(she)計(ji)(ji)(ji)、數(shu)(shu)(shu)字(zi)(zi)式邏輯思維(wei)(wei)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)層(ceng)(ceng)面(mian)(mian)(mian)(mian)(mian)設(she)計(ji)(ji)(ji)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器品(pin)(pin)牌(pai)管(guan)理(li)(li)等(deng)(deng)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)層(ceng)(ceng)面(mian)(mian)(mian)(mian)(mian)設(she)計(ji)(ji)(ji)革新(xin)數(shu)(shu)(shu)學(xue)(xue)(xue)試(shi)(shi)驗(yan)(yan)(yan)。適(shi)用(yong)(yong)(yong)(yong)華燁(ye)就(jiu)業(ye)化(hua)教(jiao)(jiao)育教(jiao)(jiao)學(xue)(xue)(xue)評價(jia)優秀的(de)(de)(de)(de)數(shu)(shu)(shu)學(xue)(xue)(xue)試(shi)(shi)驗(yan)(yan)(yan)最簡單(dan)的(de)(de)(de)(de)方法(fa);合(he)理(li)(li)合(he)理(li)(li)利用(yong)(yong)(yong)(yong)九(jiu)孔經(jing)(jing)較(jiao)(jiao)(jiao)(jiao)為(wei)好用(yong)(yong)(yong)(yong)全(quan)能(neng)數(shu)(shu)(shu)學(xue)(xue)(xue)試(shi)(shi)驗(yan)(yan)(yan)底(di)板和(he)(he)分雙面(mian)(mian)(mian)(mian)(mian)革新(xin)通透電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)的(de)(de)(de)(de)設(she)備元(yuan)(yuan)件封(feng)裝(zhuang)(zhuang)(zhuang)盒比較(jiao)(jiao)(jiao)(jiao)靈(ling)活地組(zu)合(he)起(qi)來數(shu)(shu)(shu)學(xue)(xue)(xue)試(shi)(shi)驗(yan)(yan)(yan),元(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)的(de)(de)(de)(de)設(she)備元(yuan)(yuan)件封(feng)裝(zhuang)(zhuang)(zhuang)可(ke)連續(xu)合(he)理(li)(li)合(he)理(li)(li)利用(yong)(yong)(yong)(yong),數(shu)(shu)(shu)學(xue)(xue)(xue)試(shi)(shi)驗(yan)(yan)(yan)方便快捷(jie),動腦動手動腳效果強。 模(mo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)、數(shu)(shu)(shu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)技(ji)術(shu)(shu)實(shi)(shi)(shi)(shi)踐改(gai)革的(de)(de)(de)(de)實(shi)(shi)(shi)(shi)質傳(chuan)統(tong)數(shu)(shu)(shu)學(xue)(xue)(xue)試(shi)(shi)驗(yan)(yan)(yan)實(shi)(shi)(shi)(shi)踐教(jiao)(jiao)學(xue)(xue)(xue)評價(jia)傳(chuan)統(tong)模(mo)式,適(shi)用(yong)(yong)(yong)(yong)基(ji)礎進行操作技(ji)術(shu)(shu)和(he)(he)三(san)十(shi)哪(na)幾種適(shi)用(yong)(yong)(yong)(yong)新(xin)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)層(ceng)(ceng)面(mian)(mian)(mian)(mian)(mian)設(she)計(ji)(ji)(ji)的(de)(de)(de)(de)制(zhi)做、按(an)(an)裝(zhuang)(zhuang)(zhuang),使(shi)中(zhong)(zhong)學(xue)(xue)(xue)生把握(wo)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)商產品(pin)(pin)的(de)(de)(de)(de)制(zhi)做按(an)(an)裝(zhuang)(zhuang)(zhuang),都了(le)解(jie)了(le)解(jie)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)層(ceng)(ceng)面(mian)(mian)(mian)(mian)(mian)設(she)計(ji)(ji)(ji)原則圖和(he)(he)PCB圖,熟(shu)絡經(jing)(jing)較(jiao)(jiao)(jiao)(jiao)為(wei)好用(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)戶(hu)商元(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)的(de)(de)(de)(de)設(she)備元(yuan)(yuan)件封(feng)裝(zhuang)(zhuang)(zhuang)的(de)(de)(de)(de)挑選、自測(ce),把握(wo)手工(gong)焊(han)接和(he)(he)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)層(ceng)(ceng)面(mian)(mian)(mian)(mian)(mian)設(she)計(ji)(ji)(ji)拆裝(zhuang)(zhuang)(zhuang)工(gong)藝技(ji)術(shu)(shu)技(ji)術(shu)(shu)(品(pin)(pin)牌(pai)中(zhong)(zhong)搭配三(san)十(shi)幾份(fen)特(te)別(bie)制(zhi)作的(de)(de)(de)(de)實(shi)(shi)(shi)(shi)踐電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)層(ceng)(ceng)面(mian)(mian)(mian)(mian)(mian)設(she)計(ji)(ji)(ji)板和(he)(he)相關(guan)元(yuan)(yuan)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)力(li)的(de)(de)(de)(de)設(she)備元(yuan)(yuan)件封(feng)裝(zhuang)(zhuang)(zhuang)),并能(neng)處(chu)(chu)里按(an)(an)裝(zhuang)(zhuang)(zhuang)按(an)(an)裝(zhuang)(zhuang)(zhuang)環(huan)節中(zhong)(zhong)展現(xian)的(de)(de)(de)(de)難題。實(shi)(shi)(shi)(shi)踐電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)(yuan)(yuan)(yuan)(yuan)層(ceng)(ceng)面(mian)(mian)(mian)(mian)(mian)設(she)計(ji)(ji)(ji)中(zhong)(zhong)歸屬(shu)于觸點(dian)開(kai)關(guan)、音響、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)磁波發(fa)生、計(ji)(ji)(ji)算(suan)、譯碼、表現(xian)、在線(xian)測(ce)量(liang)、管(guan)理(li)(li)等(deng)(deng)內容。 高(gao)壓(ya)(ya)低壓(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)工(gong)、電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)拖(tuo)技(ji)術(shu)(shu)實(shi)(shi)(shi)(shi)踐適(shi)用(yong)(yong)(yong)(yong)安全(quan)防護用(yong)(yong)(yong)(yong)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)戶(hu),經(jing)(jing)較(jiao)(jiao)(jiao)(jiao)為(wei)好用(yong)(yong)(yong)(yong)軟件工(gong)具(ju)及儀容儀表的(de)(de)(de)(de)適(shi)用(yong)(yong)(yong)(yong),高(gao)壓(ya)(ya)低壓(ya)(ya)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)工(gong)基(ji)礎技(ji)術(shu)(shu)康(kang)復訓練法(fa),電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動三(san)輪機(ji)(ji)的(de)(de)(de)(de)按(an)(an)裝(zhuang)(zhuang)(zhuang)定期(qi)檢查與(yu)常(chang)見故章處(chu)(chu)里,電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)動三(san)輪機(ji)(ji)基(ji)礎管(guan)理(li)(li)層(ceng)(ceng)面(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)按(an)(an)裝(zhuang)(zhuang)(zhuang)、按(an)(an)裝(zhuang)(zhuang)(zhuang)與(yu)維(wei)(wei)修服(fu)務,經(jing)(jing)較(jiao)(jiao)(jiao)(jiao)為(wei)好用(yong)(yong)(yong)(yong)研發(fa)廠家電(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)(dian)器品(pin)(pin)牌(pai)管(guan)理(li)(li)層(ceng)(ceng)面(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)常(chang)見故章數(shu)(shu)(shu)據分析與(yu)處(chu)(chu)里等(deng)(deng)項目(mu)流(liu)程(cheng)裝(zhuang)(zhuang)(zhuang)置康(kang)復訓練法(fa)。能(neng)夠 符合(he)勞功及的(de)(de)(de)(de)社保機(ji)(ji)制(zhi)就(jiu)業(ye)化(hua)技(ji)術(shu)(shu)檢測(ce)中(zhong)(zhong)級(ji)證書(shu)上(shang)面(mian)(mian)(mian)(mian)(mian)的(de)(de)(de)(de)平(ping)均水平(ping)。本系類品(pin)(pin)牌(pai)具(ju)備有數(shu)(shu)(shu)學(xue)(xue)(xue)性(xing)(xing)、安全(quan)驗(yan)(yan)(yan)證性(xing)(xing)、適(shi)用(yong)(yong)(yong)(yong)性(xing)(xing)、趣(qu)味競(jing)賽(sai)性(xing)(xing),是(shi)高(gao)教(jiao)(jiao)、技(ji)校、就(jiu)業(ye)化(hua)中(zhong)(zhong)小學(xue)(xue)(xue)及四種培訓教(jiao)(jiao)育結構(gou)剛(gang)剛(gang)建立、改(gai)建工(gong)程(cheng)數(shu)(shu)(shu)學(xue)(xue)(xue)試(shi)(shi)驗(yan)(yan)(yan)室(shi)的(de)(de)(de)(de)夢想產品(pin)(pin)。

二、研究臺和研究方法桌成分及能力:1、實驗操作臺購成與耐熱性:1.1 外接電源及運作:1.1.1、輸人電壓:三相電四線電壓,輸人時指示標志燈亮。1.1.2、供電輸入輸出:有鑲入式穩定盒和三相四線漏電觸點開關特殊自我保護基本功能。A組:單、380V能調節式互動討論電,具備0-430V不間斷能調節式的互動討論電,此外必須得要到0-250V二相能調節式電(標配1臺1.5KVA的380V自耦調壓器,標配三只lcd屏互動討論的電流值表,標示調壓輸出的的電流值)B組:低功率值交談功率值3-24V分七檔可變,大傷害功率1.5A,功率表指的是。C組:低壓證書電壓直流電穩光電探測器源,電阻5V,電壓直流電0.5A,電壓直流電表指令。D組:雙路恒流穩壓電式源,二路輸送的輸送功率均為0-30V,自帶式繼電熱器自己換檔。多圈電勢差器重復可以調節,實用利于。輸送的明顯直流相電流值電流為1.5A,兼有預置式限流養護的功能,兩遍輸送的有0.5級字母直流相電流值電流表、輸送功率表提示,輸送功率可靠度<10-2,裝載可靠度<10-2,紋波輸送功率<5mv。 E組:二相互動交流市電輸送的,由全面、萬能插板供我們備用設施實用。1.2 熱效率輸送方程再次導致器: 1)運用可以性字母幾率合成視頻(DDS)導致高準確度正弦函數交流電交流電波,方波和四角型波。運用界面顯示界面顯示屏幕LCD界面顯示輸送幾率、波型,衰減值。 2)正弦函數交流電交流電波輸送波幅≥10V,輸送電勢差差50Ω,模糊度<1%(0.1HZ-- 1KHz)。 3)幾率領域: 0.1HZ~3MHz, 運用蘋果鍵盤可以性鍵盤輸入字母選用幾率,。 4)輸送波幅運用電勢差器上下調整,正弦函數交流電交流電波輸送兼具20db,40db衰減。 5)方波占空比可調式, 上下調整領域:1%-99%上下調整;方波和四角型波運用TTL電平輸送。 6)幾率計很高測量方法領域100MHz,自動式換檔。1.3智能化型工作耗油率表、工作耗油率因素表:由24位使用DSP、16位高準確度AD更換器和極速MPU單元測試制定而成,調控鍵控、數顯儀表市場調控組隊交談作用調控模式英文。游戲上按照RTOS制定策略,與此同時搭配PC監督游戲來進一步強化數據報告分析業務能力。能測試用電線路的工作耗油率、工作耗油率因素。工作耗油率測試準確度為1.0級,工作耗油率因素測試范圍之內0.3-1.0,額定電壓交流電示值為450V和5A,能自然判別根據特點(感性的體現信息“L”,容性體現信息“C”,純熱敏電阻不體現信息),并可文件存儲測試數據報告,供隨意查尋。(注:“SXK-760A 沒有此作用”)1.4日均輸入輸入脈沖:次次可輸出精度四只正負符號輸入輸入脈沖。1.5雙聲道馬力放縮器:鍵入雙聲道 直流電壓不不高于10mV,讀取馬力不高于1W,音量可調節為,內有嗽叭,代替放縮電路原理擴音,也用于4g信號尋跡。1.6七段譯碼器:3組七段譯碼器及相應譯碼展示電子數碼管。1.7外測交流直流電源二工廠用電流表:精密度0.5級,3位半加數式表現,測量方法區間:0~1000mA1.8外測交交流電二供電壓表:計算精度0.5級,三維半號碼式信息顯示,估測規模:0~99.9V。 2、實驗室方法桌:單面飾控制面板板加工而成,不改變形不脫色,規格:160×70×80cm,外觀造型美感大氣,期間安裝有柜子,存貯方式,時間二只存貯柜,中用保存元元器。三、框架與裝備(以二十五四座為例子)(一)小學科學試驗桌:中小學生小學科學試驗桌12張,一桌二座,小學科學試驗桌樣貌規格尺寸為160×70×80cm。餐桌中間配備九孔全能電源用電線路設計插板,電源用電線路設計板進品由ABS鋅合金壓鑄而成,正面放有壓鑄而成九孔排成組的金屬片,表皮布有九孔排成組共同河南聯通的插孔,電氣配件盒在其就任意拼插成小學科學試驗電源用電線路設計。創新性電氣配件盒盒體明亮準確,封柜電阻器、電容器、電感、電子元配件大家庭中的一員-二極管、晶體管、場效用管、可控制硅等電氣配件來已到位方法小學科學試驗。封柜電氣配件方法,盒蓋印有仍會腿色電氣配件特色,粗線條清淅外觀。盒體與盒蓋進行較小學科學的壓卡式成分,維修服務、拆換有利。實踐活動由三十五兩套特別制定實踐電源用電線路設計板和相對元配件來已到位。每一張操作使用桌可配一顆膠皮板,防護專用電源用電線路設計板和臺面(如出必須在小桌子安放智能機、電焊等) 餐桌下方是元配件店鋪柜,安放小學科學試驗電氣配件、道具、交通工具等。(二)示教抑制臺:由示教實踐進行桌、實踐臺、演繹抑制屏主成,還要裝有線萬能遙控器設計,能不同萬能遙控器12臺同學們實踐臺的電開關。比較多不錯抑制60臺。長度為160×70cm。 電開關有線總抑制技能:一)、概 述“SYKZ-1型24v電wifi總的后臺” 針對性民俗24v電的后臺或多或少壞處而設汁。用片式機來進行數值打碼、破譯,完成wifi數值發收模塊圖片發送給傳輸的管理打碼,實行24v電的wifi的管理。的后臺極具節構簡單化、操作方法簡單、穩定高朝,更能維護等長處,克服了民俗鋪線式的24v電的后臺連入電纜線多、鋪線勞煩并且鋪線人工成本等致命性壞處。總的后臺與被測實驗操作英文設配在電力工程上互相孤立,影響于實驗操作英文室的布置的修改及重組方案。二)、特 點1. 該專用專用設備以315MHzwifi小數收取和發送包塊為wifi傳送質粒載體,搭配單支機商品代碼解密建立好幾個檢測實驗英文室室、幾臺檢測實驗英文室專用專用設備主機電源的wifi開關按鈕管理。2. 兩臺“SYKZ-1型電適配器無線網網總的后臺”可對獨立實踐設計室的30臺(60座)實踐設計生產生產設備參與單臺、多臺計算機或全部生產生產設備的電適配器開關按鈕無線網網的抑制。3. 每臺機 有分別的信號燈燈信號燈某一的24v電管控觸點開關心態;對實踐教學室30臺(60座)實踐機 的24v電管控觸點開關wifi手機管控。4. 可配PLC軟件,可順利通過我的電腦對檢測機械的外接電源按鈕開關實行管理。三)、技木功能 1、 運轉上電源適配器:AC220V±10%/ 50Hz 2、 運轉上場景:水溫-10℃~40℃ 相對應對環境濕度的<85%(25℃) 3、 載波工作頻率:315MHz 4、 的管控時間范圍:>50m 5、 的管控業務能力:30臺 6、 自己的外觀規格:294mm×237mm×200mm四)、部件分配 1、側鍵方案:側鍵方案分為外接電引擎啟閉運行鍵和工作鍵,至少“5號臺”~“60號臺”及“開啟”和“全關”為外接電引擎啟閉運行鍵,“認可”和“被全部撤銷”為工作鍵。“5號臺”~“60號臺”啟閉運行鍵各用對照一款工作性室的60臺工作性機,建立單臺運行運行;“開啟”和“全關”對照工作性室每個工作性機,可建立每個工作性機的快速一鍵啟閉運行;“認可”和“被全部撤銷”鍵對啟閉運行鍵的運行參與認可或被全部撤銷。 2、環境顯示方案:該方案有“5號臺”~“60號臺”共60個顯示燈,各用顯示該運行臺對照工作性室的60臺工作性機的外接電引擎啟閉環境,燈常亮表現對照工作性臺外接電引擎開,燈常滅表現對照工作性臺外接電引擎關,燈忽閃表現對該工作性臺尚未參與啟閉運行運行,趨于穩定等待圖片認可環境,能夠 忽閃時間段比來區分開機所選啟閉環境與運行環境。 3、 發射點成功方案:載波速度為315MHz,能夠 配建無線天線發射點成功總控臺的數字1簡碼。 4、 流量網絡串口:流量網絡串口為總運行臺與電腦主機的流量網絡插口,可讓用串口通信工具對工作性機參與啟閉運行,串口通信工具表層簡短,運行方便簡潔。五)、PLC系統軟件性能 1.串口打印測量 2.能夠 串口發射工做中臺工做中ps指令 3.讀取識別圖片主要制臺發射工做中臺轉換電源開關有效操控的ps指令,并獲取工做中臺業務狀態表現 4.能有效操控許多128工做中臺 5.轉換電源開關工做中臺操作步驟的時間表現(三)、工作臺,共13臺,幼兒工作桌和示教桌上各購置1臺。


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