篩分站,移動篩分站,振動篩,圓振動篩,直線振動篩_鄭州yi帆機械
鄭州yi帆機(ji)械是國內的(de)破碎篩分設備制(zhi)造商,公司主(zhu)要(yao)篩分設備有(you)篩分站(zhan)(移動(dong)篩分站(zhan)),振(zhen)動(dong)篩,圓振(zhen)動(dong)篩,直線振(zhen)動(dong)篩等,聯系電話:-64627880.。
圓振篩|圓振動篩|礦用振動篩|振動篩型號|震動篩|河南振動篩價格__
華邦振(zhen)(zhen)動(dong)篩(shai)(shai),質量數!專業生(sheng)產圓振(zhen)(zhen)篩(shai)(shai),礦(kuang)用振(zhen)(zhen)動(dong)篩(shai)(shai),圓振(zhen)(zhen)動(dong)篩(shai)(shai),滾筒篩(shai)(shai),重型(xing)(xing)震動(dong)篩(shai)(shai),砂石(shi)料振(zhen)(zhen)動(dong)篩(shai)(shai)分機(ji),直線振(zhen)(zhen)動(dong)篩(shai)(shai)等提供振(zhen)(zhen)動(dong)篩(shai)(shai)型(xing)(xing)號(hao)及(ji)河南(nan)振(zhen)(zhen)動(dong)篩(shai)(shai)價格(ge)。咨詢熱線:。
重型篩分設備圓振動篩振動機械供求信息-中國振動機械網
[供應]供應振(zhen)動(dong)(dong)(dong)(dong)篩(shai);WYK型圓振(zhen)動(dong)(dong)(dong)(dong)篩(shai)2014-09-30用途及特點WYK系(xi)列圓振(zhen)動(dong)(dong)(dong)(dong)篩(shai)運動(dong)(dong)(dong)(dong)軌跡為圓,采(cai)用電(dian)機直接(jie)拖動(dong)(dong)(dong)(dong)振(zhen)幅(fu)可調塊偏心的振(zhen)動(dong)(dong)(dong)(dong)器,結構簡單,維修(xiu)方便,使用壽(shou)命(ming)。
圓振動篩|橡膠彈簧|除鐵器|帶式除鐵器|懸掛式永磁除鐵器-新鄉鳳泉
新鄉市(shi)新源機械(xie)制(zhi)造有(you)限公司是新鄉振(zhen)動篩(shai)(shai)行(xing)業較早(zao)生的振(zhen)動篩(shai)(shai)配件,圓振(zhen)動篩(shai)(shai),聚氨酯篩(shai)(shai)板(ban),不銹鋼條縫篩(shai)(shai)板(ban),橡膠彈(dan)(dan)簧(huang),復合彈(dan)(dan)簧(huang),橡膠球,除鐵器的企業之(zhi)一.有(you)專業的振(zhen)動。
圓振動篩工作原理_百度文庫
(直線振(zhen)(zhen)(zhen)動篩(shai)(shai)、單(dan)軸振(zhen)(zhen)(zhen)動篩(shai)(shai)、高頻(pin)振(zhen)(zhen)(zhen)動篩(shai)(shai)、重型振(zhen)(zhen)(zhen)動篩(shai)(shai)、輕型振(zhen)(zhen)(zhen)動篩(shai)(shai)、圓振(zhen)(zhen)(zhen)動篩(shai)(shai)等)、系(xi)(xi)列振(zhen)(zhen)(zhen)動給料機(ji)、系(xi)(xi)列給煤機(ji)、系(xi)(xi)列給粉機(ji)、系(xi)(xi)列倉壁振(zhen)(zhen)(zhen)動器、系(xi)(xi)列斗(dou)式提升(sheng)機(ji)。
振動篩|給料機|直線振動篩|電磁振動給料機|圓振動篩|礦用振動篩|
振(zhen)動(dong)篩(shai)(shai)(shai)分(fen)為直(zhi)線振(zhen)動(dong)篩(shai)(shai)(shai),圓振(zhen)動(dong)篩(shai)(shai)(shai),河南(nan)紅xing專業生產各(ge)種(zhong)振(zhen)動(dong)篩(shai)(shai)(shai),質量好,價格(ge)合理,如(ru)有需要這些設備詳細信息的客戶歡迎咨詢:+86-371-67825133,提供振(zhen)動(dong)篩(shai)(shai)(shai)價格(ge),圓振(zhen)動(dong)篩(shai)(shai)(shai)。
振動篩|圓振動篩|直線振動篩|震動篩-河南鄭州振動篩生產廠家
新鄉市(shi)東源(yuan)(yuan)振動(dong)機械是集振動(dong)篩分設(she)備設(she)計、生產、銷售于一體(ti)的機械公司(si)。東源(yuan)(yuan)振動(dong)機械—高效—精(jing)細—節能(neng)—免維護—讓您一步到位,解決(jue)您的各(ge)種篩分需求。東源(yuan)(yuan)振動(dong)。
園振動篩_百度百科
三星振(zhen)(zhen)(zhen)動(dong)篩是(shi)一家具有二十年振(zhen)(zhen)(zhen)動(dong)篩設(she)計(ji)、制(zhi)造經(jing)驗的老牌(pai)振(zhen)(zhen)(zhen)動(dong)篩廠家,公司主要提供(gong)直線振(zhen)(zhen)(zhen)動(dong)篩、圓(yuan)振(zhen)(zhen)(zhen)動(dong)篩、礦用(yong)振(zhen)(zhen)(zhen)動(dong)篩、熱礦振(zhen)(zhen)(zhen)動(dong)篩、脫(tuo)水振(zhen)(zhen)(zhen)動(dong)篩等篩分設(she)備的設(she)計(ji)及產(chan)品。
振動篩|直線振動篩|礦用振動篩———振動篩官網400-0373-066
中國(guo)振動篩(shai)(shai)分設備制造企業-鑫威(wei)機械公司專業從事振動篩(shai)(shai),直線(xian)振動篩(shai)(shai),礦用振動篩(shai)(shai)制造和銷售,鑫威(wei)振動篩(shai)(shai)深受全(quan)國(guo)各(ge)地(di)振動篩(shai)(shai)機用戶好評.咨詢(xun)熱線(xian):0373-2654666。
振動篩_振動篩廠家_直線振動篩_超聲波振動篩_標準檢驗篩_圓振動篩
新鄉市(shi)歐(ou)霖佳機(ji)械有限公(gong)司是專業生產(chan)振(zhen)(zhen)(zhen)動(dong)篩(shai)的廠家,主(zhu)營產(chan)品包括震(zhen)動(dong)篩(shai),圓振(zhen)(zhen)(zhen)動(dong)篩(shai),振(zhen)(zhen)(zhen)動(dong)篩(shai)分(fen)機(ji)的制造與銷售,擁(yong)有的震(zhen)動(dong)篩(shai)研發團隊,振(zhen)(zhen)(zhen)動(dong)篩(shai)分(fen)機(ji)遠(yuan)銷海外,是新鄉振(zhen)(zhen)(zhen)動(dong)。
振動篩|直線振動篩|震動篩|圓振動篩|新鄉振動篩|超聲波振動篩_
振(zhen)動篩(shai)是一(yi)種適(shi)合潮(chao)濕細粒級難(nan)篩(shai)物料(liao)干(gan)法(fa)篩(shai)分(fen)的振(zhen)動篩(shai)分(fen)機械設備,是目前國(guo)內處(chu)理難(nan)篩(shai)物料(liao)的振(zhen)動篩(shai)分(fen)機械設備。上(shang)海(hai)是國(guo)內的振(zhen)動篩(shai)生產廠家。為客戶提(ti)供多種。
中國的振動篩制造商-新鄉市歐霖佳機械有限公司
新鄉市(shi)大漢(han)(han)振動(dong)機(ji)械(xie)有限公(gong)司是專業(ye)振動(dong)篩(shai)(shai)震動(dong)篩(shai)(shai),圓振動(dong)篩(shai)(shai)圓篩(shai)(shai),直線振動(dong)篩(shai)(shai),礦用振動(dong)篩(shai)(shai),新鄉振動(dong)篩(shai)(shai),等各(ge)種振動(dong)篩(shai)(shai)分設(she)備的制(zhi)造企業(ye),致力于(yu)解決各(ge)種篩(shai)(shai)分難(nan)題,大漢(han)(han)牌(pai)。
圓振動篩|振動篩|直線振動篩|圓振篩-上海機械制造有限公司
新源振(zhen)(zhen)動(dong)篩是一家(jia)具有二十(shi)年(nian)振(zhen)(zhen)動(dong)篩設計(ji)、制造(zao)經驗的老牌振(zhen)(zhen)動(dong)篩廠家(jia),公司主要(yao)提(ti)供(gong)直線振(zhen)(zhen)動(dong)篩、圓(yuan)振(zhen)(zhen)動(dong)篩、礦用振(zhen)(zhen)動(dong)篩、熱礦振(zhen)(zhen)動(dong)篩、脫(tuo)水振(zhen)(zhen)動(dong)篩等篩分(fen)設備的設計(ji)及產品(pin)。
振動篩_圓振動篩_直線振動篩_礦用振動篩_新鄉振動篩—大漢振動機械
我公(gong)司(si)是(shi)設計、制造各類型號(hao)的(de)振動(dong)(dong)篩,直線振動(dong)(dong)篩,圓振動(dong)(dong)篩系列產品(pin)的(de)專業性公(gong)司(si)。公(gong)司(si)同(tong)時具備(bei)為(wei)采石(shi)、采礦、水(shui)泥、建材等行(xing)業提(ti)供成套生(sheng)產設備(bei)的(de)能力。
振動篩|振動篩廠家|直線振動篩|圓振動篩|新鄉振動篩-新源振動篩
新鄉(xiang)三三四振(zhen)動(dong)(dong)(dong)機(ji)械(xie)有限公司(si)是一家(jia)專業生產(chan)振(zhen)動(dong)(dong)(dong)篩(shai)(shai)(震動(dong)(dong)(dong)篩(shai)(shai))、旋振(zhen)篩(shai)(shai)、圓(yuan)振(zhen)動(dong)(dong)(dong)篩(shai)(shai)、直線篩(shai)(shai)等各(ge)類振(zhen)動(dong)(dong)(dong)篩(shai)(shai)機(ji)設備的(de)廠(chang)家(jia)。主營產(chan)品(pin)有振(zhen)動(dong)(dong)(dong)篩(shai)(shai)(震動(dong)(dong)(dong)篩(shai)(shai))、圓(yuan)振(zhen)動(dong)(dong)(dong)篩(shai)(shai)、旋振(zhen)篩(shai)(shai)。
振動篩,直線振動篩,圓振動篩-振動篩銷售及技術動態專業網
新鄉三原振(zhen)動(dong)(dong)(dong)(dong)篩廠家(jia)產(chan)品有:震(zhen)動(dong)(dong)(dong)(dong)篩,超(chao)聲波振(zhen)動(dong)(dong)(dong)(dong)篩,斗式(shi)提升機,振(zhen)動(dong)(dong)(dong)(dong)給料(liao)機,皮帶輸送(song)機,直線振(zhen)動(dong)(dong)(dong)(dong)篩,旋(xuan)振(zhen)篩,振(zhen)動(dong)(dong)(dong)(dong)電機,圓振(zhen)動(dong)(dong)(dong)(dong)篩,螺旋(xuan)輸送(song)機,礦用振(zhen)動(dong)(dong)(dong)(dong)篩、高(gao)頻振(zhen)動(dong)(dong)(dong)(dong)篩。
振動篩震動篩旋振篩直線篩圓振動篩生產-新鄉市三三四振動機械
科迪礦(kuang)用機械專業從事振(zhen)動(dong)篩(shai)(shai)震(zhen)動(dong)篩(shai)(shai)的設計研發及生產(chan)(chan)制造工作,產(chan)(chan)品涉及振(zhen)動(dong)篩(shai)(shai)、礦(kuang)用篩(shai)(shai)、直線篩(shai)(shai)、振(zhen)動(dong)電機、超聲(sheng)波(bo)震(zhen)動(dong)篩(shai)(shai)等(deng)數十種振(zhen)動(dong)設備,歡(huan)迎(ying)新老用戶來電咨(zi)詢。
振動篩|直線振動篩|旋振篩|超聲波振動篩|圓振動篩-新鄉三原震動篩廠
專業生產振(zhen)動(dong)篩(shai),新型(xing)振(zhen)動(dong)篩(shai),圓振(zhen)動(dong)篩(shai),直線振(zhen)動(dong)篩(shai),振(zhen)動(dong)篩(shai)分機,礦用振(zhen)動(dong)篩(shai)等系列篩(shai)分設(she)備,振(zhen)動(dong)篩(shai)廠家(jia)那家(jia)好,來鄭州世工(gong)機械設(she)備看看知道!銷(xiao)售(shou)熱線:-67821237。
振動篩|直線篩|圓震動篩|超聲波振動篩-振動篩廠家直銷,價格!
振源園振動篩的價格報(bao)價和詳細的參數規格資料,在樂百供(gong)工(gong)業品采購解(jie)決方案平臺。歡迎(ying)致電400-881-8801了解(jie)更(geng)多(duo)!。
振動篩|礦用振動篩|直線振動篩|圓振動篩|篩分設備還是鄭州世工機械
振(zhen)(zhen)動(dong)(dong)(dong)篩(shai)(shai)(shai)是(shi)一種適合潮濕(shi)細粒級難(nan)篩(shai)(shai)(shai)物料干法(fa)篩(shai)(shai)(shai)分(fen)的振(zhen)(zhen)動(dong)(dong)(dong)篩(shai)(shai)(shai)分(fen)機械設備(bei)(bei),是(shi)目前國(guo)內處理(li)難(nan)篩(shai)(shai)(shai)物料的振(zhen)(zhen)動(dong)(dong)(dong)篩(shai)(shai)(shai)分(fen)機械設備(bei)(bei)。上海是(shi)國(guo)內的振(zhen)(zhen)動(dong)(dong)(dong)篩(shai)(shai)(shai)生產廠家。為客戶提(ti)供多種。
振源園振動篩-YK1236,2YK1236,YK1536,2YK1536,YK1542,2YK1542,YK
歐霖佳機械有限公司專業生產振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)篩(shai),超聲波(bo)振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)篩(shai),直線振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)篩(shai),圓振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)篩(shai)等篩(shai)分(fen)設備;是一家擁有自主(zhu)知識(shi)產權的(de)振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)篩(shai)生產企業,是國內(nei)的(de)振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)篩(shai)制造商(shang)。
圓振動篩|振動篩|直線振動篩|圓振篩-上海機械制造有限公司
“寶林牌”全系列(lie)振(zhen)動(dong)(dong)篩(shai)、直線振(zhen)動(dong)(dong)篩(shai)、超(chao)聲波振(zhen)動(dong)(dong)篩(shai)、旋振(zhen)篩(shai)、直線篩(shai)、試驗篩(shai)、振(zhen)動(dong)(dong)電機制(zhi)造(zao)商(shang)-品(pin)牌之選(xuan)質量之選(xuan)服務之選(xuan)0373-2632032。
振動篩|超聲波振動篩|直線振動篩|圓振動篩|新鄉振動篩_歐霖佳機械
新鄉宏升(sheng)振(zhen)動(dong)機械有限公司(si)各類不銹鋼振(zhen)動(dong)篩。李(li)經(jing)理13782548005地址(zhi)新鄉市(shi)李(li)村工業園區(qu)(qu)B區(qu)(qu)B-08。
振動篩-振動電機專業廠商-品牌之選
同(tong)鑫振動機(ji)(ji)械公(gong)司產品(pin)有:直線篩,弧形篩,脫水篩,圓振動篩,回轉篩,礦用振動篩,高(gao)效重型振動篩等振動篩分設備以及相配套的(de)皮帶輸送機(ji)(ji),刮板輸送機(ji)(ji),斗式提升(sheng)機(ji)(ji),給(gei)料。
不銹鋼振動篩|圓形振動篩-新鄉宏升振動機械有限公司
新(xin)鄉市百源(yuan)機械有限公司是專(zhuan)業生產直線(xian)振(zhen)(zhen)動(dong)篩(shai)(shai)(shai)(shai)、圓(yuan)振(zhen)(zhen)動(dong)篩(shai)(shai)(shai)(shai)、震動(dong)篩(shai)(shai)(shai)(shai)的廠家,公司生產的“百源(yuan)”牌(pai)震動(dong)篩(shai)(shai)(shai)(shai)深受廣大用戶贊譽。圓(yuan)振(zhen)(zhen)動(dong)篩(shai)(shai)(shai)(shai)_直線(xian)振(zhen)(zhen)動(dong)篩(shai)(shai)(shai)(shai)訂購電話:0373-2637368。
振動篩,直線篩,圓振動篩,礦用振動篩,脫水篩-新鄉市同鑫振動機械
新鄉京和機械(xie)專業供應(ying)銷(xiao)售震動(dong)篩,圓(yuan)振動(dong)篩,螺旋輸(shu)送機,公司具有良好的市場信譽(yu),專業的銷(xiao)售和技(ji)術服(fu)務團隊(dui)!螺旋輸(shu)送機、震動(dong)篩、圓(yuan)振動(dong)篩定購咨詢:0373-2686728。
直線振動篩_圓振動篩_震動篩_新鄉市百源機械有限公司
新鄉市振泰(tai)(tai)機械(xie)有限公司(si)是(shi)集振動篩(shai)(shai)(shai)分設備設計、生(sheng)產、銷售于一體的(de)機械(xie)公司(si)。振泰(tai)(tai)機械(xie)設計生(sheng)產的(de)振動篩(shai)(shai)(shai)、旋振篩(shai)(shai)(shai)、超聲波振動篩(shai)(shai)(shai)、直線振動篩(shai)(shai)(shai)、氣流(liu)篩(shai)(shai)(shai)、試驗篩(shai)(shai)(shai)等各種。
震動篩|螺旋輸送機|圓振動篩生產廠家-新鄉京和機械400-618-1235
振動(dong)篩(shai)專(zhuan)(zhuan)業制造商(shang)—新鄉市大漢(han)振動(dong)機械有限公(gong)司是專(zhuan)(zhuan)業生產(chan)銷(xiao)售各種篩(shai)分(fen)設(she)備(bei),致力于解決各種篩(shai)分(fen)難題。大漢(han)牌振動(dong)篩(shai)不銹鋼振動(dong)篩(shai)圓(yuan)形振動(dong)篩(shai)長方形振動(dong)篩(shai)臥式(shi)氣流(liu)篩(shai)。
振動篩_旋振篩_超聲波振動篩_直線振動篩_氣流篩_新鄉振動篩生產
鳳泉明科專業生產(chan):直線(xian)振動(dong)篩(shai)(shai),圓振動(dong)篩(shai)(shai),礦用振動(dong)篩(shai)(shai),脫(tuo)水振動(dong)篩(shai)(shai),直線(xian)篩(shai)(shai),超聲波振動(dong)篩(shai)(shai),.歡(huan)迎新老客戶到我廠。0373-2513277。
振動篩|不銹鋼振動篩|圓形振動篩|長方形振動篩|臥式氣流篩—新鄉
圓形振(zhen)(zhen)動篩(shai)(shai)(shai)圓形振(zhen)(zhen)動篩(shai)(shai)(shai)是(shi)(shi)指(zhi)外(wai)形為圓形的振(zhen)(zhen)動篩(shai)(shai)(shai),一般是(shi)(shi)指(zhi)常見的旋(xuan)振(zhen)(zhen)篩(shai)(shai)(shai),只(zhi)是(shi)(shi)菏埯店停(ting)妯榛炒鐺卒坩藁澹釕(liao)勐久尸園秤件炷酋閏豉牢論(lun)吖(a)斂鍶咄(duo)冉(ran)鏤麝煬(yang)。
直線振動篩,圓振動篩,礦用振動篩,脫水振動篩,直線篩,超聲波振動篩
新鄉振(zhen)(zhen)(zhen)動(dong)篩(shai)廠家(jia)-新源(yuan)是河南早一批振(zhen)(zhen)(zhen)動(dong)篩(shai)生產廠家(jia)之一,技術精(jing)湛,質(zhi)量保證,價格實惠(hui),產品有:圓振(zhen)(zhen)(zhen)動(dong)篩(shai),直線振(zhen)(zhen)(zhen)動(dong)篩(shai),旋振(zhen)(zhen)(zhen)篩(shai),滾筒篩(shai),脫水篩(shai),煤粉篩(shai),礦用振(zhen)(zhen)(zhen)動(dong)篩(shai),波動(dong)。
圓形振動篩-豆丁網
新鄉市興達振動(dong)機械(xie)有限(xian)公司專(zhuan)業生產搖(yao)擺(bai)篩(shai),圓(yuan)形振動(dong)篩(shai),超(chao)聲波(bo)振動(dong)篩(shai).其中(zhong)搖(yao)擺(bai)篩(shai),方形搖(yao)擺(bai)篩(shai),圓(yuan)形搖(yao)擺(bai)篩(shai),圓(yuan)形振動(dong)篩(shai)和超(chao)聲波(bo)振動(dong)篩(shai)為(wei)主.電話:13007662682。
旋振篩/滾筒篩/直線振動篩/圓振動篩-河南新鄉新源振動篩廠家
四川(chuan)成(cheng)都(dou)振(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai)廠家(jia)專業(ye)生產:振(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai),直線振(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai),圓(yuan)(yuan)振(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai),超聲(sheng)波(bo)振(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai),振(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai)(震動(dong)(dong)篩(shai)(shai)(shai)(shai))報價,振(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai)價格(ge),圓(yuan)(yuan)振(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai),超聲(sheng)波(bo)振(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai),公司是振(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai)分(fen)機設備(bei)生產廠家(jia)電話。
搖擺篩|圓形振動篩|搖擺篩廠家-興達機械搖擺篩
新鄉市明洋篩(shai)分(fen)機(ji)械有限公(gong)司是(shi)一(yi)家從(cong)事振動(dong)篩(shai)、搖擺篩(shai)、震動(dong)篩(shai)、圓振動(dong)篩(shai)、旋(xuan)振篩(shai)、標準檢(jian)驗篩(shai)、分(fen)析試驗篩(shai)、直(zhi)線(xian)振動(dong)篩(shai)、給料輸送設備及振動(dong)過濾篩(shai)分(fen)系列產(chan)品的。
振動篩_直線振動篩_圓振動篩_超聲波振動篩_四川成都振動篩廠家
振(zhen)(zhen)(zhen)動(dong)(dong)篩(shai)生(sheng)產廠家(jia):新源(yuan)機(ji)械有(you)限公司(si)是專(zhuan)業化的(de)振(zhen)(zhen)(zhen)動(dong)(dong)篩(shai)設(she)計(ji)和生(sheng)產廠家(jia),專(zhuan)業的(de)制造團隊,有(you)多年生(sheng)產振(zhen)(zhen)(zhen)動(dong)(dong)篩(shai)的(de)豐富經驗,主要類型有(you):直線振(zhen)(zhen)(zhen)動(dong)(dong)篩(shai)、圓振(zhen)(zhen)(zhen)動(dong)(dong)篩(shai)、旋振(zhen)(zhen)(zhen)篩(shai)、直排(pai)篩(shai)。
搖擺篩,震動篩,振動篩,圓振動篩-新鄉市明洋篩分機械有限公司
下(xia)面(mian)是(shi)東莞市(shi)寮步(bu)廣(guang)鋒塑料機(ji)械(xie)經營店(dian)為您精選的圓(yuan)形(xing)振動(dong)篩(shai)-圓(yuan)形(xing)振動(dong)篩(shai)系(xi)列產(chan)品,東莞市(shi)寮步(bu)廣(guang)鋒塑料機(ji)械(xie)經營店(dian)是(shi)圓(yuan)形(xing)振動(dong)篩(shai)的專(zhuan)業制造商,如果您有這方面(mian)的需要(yao)。