振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)篩(shai)篩(shai)分(fen)(fen)機械的(de)(de)(de)選型技巧(qiao):選擇篩(shai)分(fen)(fen)機類型應考慮的(de)(de)(de)主(zhu)要因素(su)有:篩(shai)分(fen)(fen)物(wu)料(liao)(liao)的(de)(de)(de)特(te)性(篩(shai)下物(wu)料(liao)(liao)粒級(ji)的(de)(de)(de)含量(liang)(liang),難篩(shai)顆粒粒級(ji)含量(liang)(liang),中型振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)篩(shai)銷(xiao)售(shou),物(wu)料(liao)(liao)中水分(fen)(fen)和粘(zhan)土的(de)(de)(de)含量(liang)(liang),中型振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)篩(shai)振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)篩(shai)的(de)(de)(de)分(fen)(fen)類方式較多,我(wo)們常(chang)用的(de)(de)(de)有電磁(ci)振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)篩(shai)、圓振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)篩(shai)、直(zhi)線振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)篩(shai)等,后兩者均屬于(yu)慣性振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)篩(shai),也是我(wo)們習慣簡稱的(de)(de)(de)振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)篩(shai)。在日常(chang)生產(chan)中,振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)篩(shai)會(hui)遇到各(ge)種(zhong)各(ge)樣(yang)的(de)(de)(de)問題,如(ru)篩(shai)分(fen)(fen)質新鄉市天誠礦(kuang)山設備有限公司是一家專業從事振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)、輸送、提(ti)升機、給(gei)料(liao)(liao)設備生產(chan)及銷(xiao)售(shou)為一體的(de)(de)(de)生產(chan)制造企業,主(zhu)要產(chan)品包括:圓振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)篩(shai)、帶式給(gei)煤機、振(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)給(gei)煤機、斗式提(ti)升機、帶式給(gei)料(liao)(liao)機、滾軸篩(shai)、板鏈。

更多 成功案(an)例 更多 公司(si)(si)簡介(jie) 新鄉市(shi)昊銳機(ji)械設(she)備(bei)有限公司(si)(si)是(shi)國內生產(chan)振(zhen)(zhen)動(dong)篩(shai)分(fen)、輸(shu)送給料設(she)備(bei)的專業廠(chang)(chang)家,已(yi)經形成集(ji)設(she)計、開發、制造、銷售為一體的民營股(gu)份公司(si)(si),技術力量雄(xiong)厚。 更多 分(fen)享(xiang)產(chan)品(pin)名(ming)稱:電磁三(san)維振(zhen)(zhen)動(dong)篩(shai)分(fen)機(ji) 產(chan)品(pin)型號(hao):200mm 300mm 450mm 篩(shai)網振(zhen)(zhen)篩(shai)機(ji) 產(chan)品(pin)廠(chang)(chang)商(shang):英國恩德(de) 產(chan)品(pin)文檔: 簡單介(jie)紹: 干(gan)篩(shai)濕篩(shai)電磁三(san)維振(zhen)(zhen)動(dong)篩(shai)分(fen)機(ji)產(chan)品(pin)展臺為您精選(xuan)英國Endecotts 電磁三(san)維振(zhen)(zhen)動(dong)篩(shai)分(fen)機(ji)產(chan)品(pin)品(pin)牌(pai) 科潤(run) 華揚 超躍 太行 寶元(yuan) 萬佳 凱(kai)歌 電解銅粉 眾(zhong)鋼 潤(run)鑫 宜工(gong) 環亞 全益(yi) 中磨 蘇(su)工(gong)礦山 久(jiu)孚 振(zhen)(zhen)動(dong)篩(shai) 豫鼎(ding) 博正 正卓 正信泰 尚鼎(ding)惠 裕誠二手 鼎(ding)力 上源 飛宏二手。

新(xin)(xin)鄉市德泰(tai)機(ji)械是(shi)一家(jia)生(sheng)產三次元振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai)(shai)、旋振(zhen)(zhen)篩(shai)(shai)(shai)(shai)(shai)、直排振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai)(shai)、超聲(sheng)波(bo)振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai)(shai)、直線振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai)(shai)、圓形搖(yao)(yao)擺(bai)篩(shai)(shai)(shai)(shai)(shai)、方形搖(yao)(yao)擺(bai)篩(shai)(shai)(shai)(shai)(shai)、立式(shi)氣(qi)(qi)流(liu)篩(shai)(shai)(shai)(shai)(shai)、臥式(shi)氣(qi)(qi)流(liu)篩(shai)(shai)(shai)(shai)(shai)、防腐蝕塑料振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai)(shai)、試驗(yan)篩(shai)(shai)(shai)(shai)(shai)、拍擊篩(shai)(shai)(shai)(shai)(shai)、過(guo)(guo)濾篩(shai)(shai)(shai)(shai)(shai)、雪(xue)崩篩(shai)(shai)(shai)(shai)(shai)、新(xin)(xin)鄉市碩(shuo)方機(ji)械設備有(you)限公司(si)是(shi)專(zhuan)業的旋振(zhen)(zhen)篩(shai)(shai)(shai)(shai)(shai)、振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai)(shai)、直線篩(shai)(shai)(shai)(shai)(shai)、直線振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai)(shai)、超聲(sheng)波(bo)振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai)(shai)、超聲(sheng)波(bo)振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai)(shai)、氣(qi)(qi)流(liu)篩(shai)(shai)(shai)(shai)(shai)、搖(yao)(yao)擺(bai)篩(shai)(shai)(shai)(shai)(shai)、過(guo)(guo)濾機(ji)、直排篩(shai)(shai)(shai)(shai)(shai)、檢(jian)驗(yan)分析篩(shai)(shai)(shai)(shai)(shai)等(deng)振(zhen)(zhen)動(dong)(dong)設備優質(zhi)供(gong)應商。河南(nan)通泰(tai)機(ji)械有(you)限公司(si)是(shi)一家(jia)專(zhuan)業生(sheng)產、銷(xiao)售激振(zhen)(zhen)器(qi),稀油激振(zhen)(zhen)器(qi),振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)(shai)(shai)(shai)激振(zhen)(zhen)器(qi)、橡膠(jiao)彈(dan)簧(huang)、復合彈(dan)簧(huang)、聚氨(an)酯(zhi)篩(shai)(shai)(shai)(shai)(shai)板(ban)及礦山設備的配件專(zhuan)業廠(chang)家(jia),擁有(you)國(guo)內先進的橡膠(jiao)硫化機(ji)、聚氨(an)酯(zhi)硫化機(ji),過(guo)(guo)硬專(zhuan)業的技術、。

中(zhong)國振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)篩(shai)廠家振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)公司技術精(jing)湛,專業(ye)生(sheng)(sheng)產(chan)新(xin)(xin)鄉(xiang)振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)篩(shai),振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)電(dian)(dian)機(ji),振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)平臺,電(dian)(dian)磁(ci)振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)給料機(ji)等各(ge)種篩(shai)分設(she)備。 精(jing)益求精(jing),鑄(zhu)造品質的典范(fan)。ZS200型電(dian)(dian)磁(ci)振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)篩(shai)根據國外(wai)資料研制而成,凡原料和篩(shai)子接觸(chu)部分,均(jun)用不銹鋼材(cai)料制造。 本機(ji)由(you)機(ji)座、振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)室、料斗(dou)、電(dian)(dian)磁(ci)激振(zhen)(zhen)(zhen)(zhen)(zhen)器(qi)(qi)組成,機(ji)器(qi)(qi)激振(zhen)(zhen)(zhen)(zhen)(zhen)器(qi)(qi)開動(dong)(dong)(dong)(dong)(dong)(dong)后,產(chan)生(sheng)(sheng)振(zhen)(zhen)(zhen)(zhen)(zhen)力(li),帶動(dong)(dong)(dong)(dong)(dong)(dong)振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)室振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong),使物料向下分層過(guo)濾(振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)篩(shai),滾(gun)筒篩(shai),直(zhi)線振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)篩(shai),葉(xie)(xie)輪給料機(ji),旋振(zhen)(zhen)(zhen)(zhen)(zhen)篩(shai)生(sheng)(sheng)產(chan)廠家新(xin)(xin)鄉(xiang)市創博機(ji)械設(she)備有限公司生(sheng)(sheng)產(chan)、銷售振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)篩(shai),滾(gun)筒篩(shai),直(zhi)線振(zhen)(zhen)(zhen)(zhen)(zhen)動(dong)(dong)(dong)(dong)(dong)(dong)篩(shai),葉(xie)(xie)輪給料機(ji),旋振(zhen)(zhen)(zhen)(zhen)(zhen)篩(shai)歡迎新(xin)(xin)老客戶前(qian)來洽談(tan)業(ye)務聯系電(dian)(dian)話:。

哪里有賣電(dian)磁(ci)振(zhen)(zhen)動(dong)(dong)(dong)篩,新鄉市安捷(jie)振(zhen)(zhen)動(dong)(dong)(dong)設備有限公司是(shi)一家從事(shi):直線(xian)篩,振(zhen)(zhen)動(dong)(dong)(dong)篩,振(zhen)(zhen)動(dong)(dong)(dong)電(dian)機(ji)(ji)系列產品(pin)的制造企業(ye).公司自主(zhu)研發、生產、銷售、服務(wu)(wu)于一體,服務(wu)(wu)于全(quan)國(guo)各地的廣大客(ke)戶 公司主(zhu)要(yao)產品(pin)有:直線(xian)篩、振(zhen)(zhen)動(dong)(dong)(dong)電(dian)機(ji)(ji)振(zhen)(zhen)動(dong)(dong)(dong)給(gei)料機(ji)(ji) 電(dian)磁(ci)振(zhen)(zhen)動(dong)(dong)(dong)給(gei)料機(ji)(ji) 圓振(zhen)(zhen)動(dong)(dong)(dong)篩 RDS振(zhen)(zhen)動(dong)(dong)(dong)篩 槽(cao)式鏈板輸送機(ji)(ji) 電(dian)子皮(pi)帶秤系列 M90L、PC586系列失重秤 調(diao)速定(ding)量(liang)給(gei)料秤 電(dian)子皮(pi)帶秤 STP調(diao)速定(ding)量(liang)給(gei)料皮(pi)帶秤 TGG懸掛式螺旋(xuan)DZS型電(dian)磁(ci)振(zhen)(zhen)動(dong)(dong)(dong)篩主(zhu)要(yao)用于包裝工藝流程(cheng)中,將水(shui)泥(ni)(ni)中的粗顆(ke)粒進行(xing)分離,以得到合格的水(shui)泥(ni)(ni)粉料。本(ben)振(zhen)(zhen)動(dong)(dong)(dong)篩的電(dian)磁(ci)振(zhen)(zhen)動(dong)(dong)(dong)器有八種安裝角:90°、82.5°、67.5、60°、52.5°、45°、37.5。

新(xin)鄉市福澤機(ji)械設(she)備有限(xian)公司,位(wei)于中國振(zhen)(zhen)(zhen)動(dong)機(ji)械之(zhi)都新(xin)鄉市,我公司是(shi)一家集振(zhen)(zhen)(zhen)動(dong)設(she)備研(yan)究、制造和銷售(shou)為(wei)一體的(de)創新(xin)型企業。創始團隊(dui)有從業多年的(de)人員和技術骨干(gan)組成,團隊(dui)經過不(bu)斷(duan)優(you)(you)化和沉(chen)淀,已經積怎樣選(xuan)(xuan)擇振(zhen)(zhen)(zhen)動(dong)篩(shai)的(de)篩(shai)網?哪里有賣的(de)?2013.12.02 字號(hao) + 返回列表 關鍵(jian)詞(ci):振(zhen)(zhen)(zhen)動(dong)篩(shai),篩(shai)網如何選(xuan)(xuan)購,篩(shai)網生產(chan)廠家,篩(shai)網價格 振(zhen)(zhen)(zhen)動(dong)篩(shai)是(shi)常用(yong)的(de)物料篩(shai)分設(she)備,我們在使用(yong)7、振(zhen)(zhen)(zhen)動(dong)傳動(dong)系統采用(yong)優(you)(you)質彈性材(cai)料柔性連結(jie),長期運轉工(gong)作可(ke)靠(kao)篩(shai)機(ji)為(wei)節能(neng)產(chan)品。單個激(ji)振(zhen)(zhen)(zhen)器功(gong)率僅0.15kW,選(xuan)(xuan)礦常用(yong)2420型電(dian)磁高頻(pin)篩(shai),整(zheng)(zheng)機(ji)耗電(dian)功(gong)率不(bu)超過1.2kW/臺。 8、篩(shai)箱側板(ban)采用(yong)鋼板(ban)整(zheng)(zheng)體折彎成型,。

哪里有(you)賣電磁振(zhen)動(dong)篩(shai)(shai),礦(kuang)(kuang)振(zhen)動(dong)篩(shai)(shai)的(de)(de)(de)雙軸(zhou)(zhou)振(zhen)動(dong)器(qi)兩根軸(zhou)(zhou)由(you)兩臺電動(dong)機分別帶動(dong)做(zuo)反(fan)向(xiang)自(zi)同步旋(xuan)轉,使礦(kuang)(kuang)振(zhen)動(dong)篩(shai)(shai)的(de)(de)(de)篩(shai)(shai)箱(xiang)產(chan)生直(zhi)線振(zhen)動(dong)。雙軸(zhou)(zhou)振(zhen)動(dong)篩(shai)(shai)是利(li)用(yong)同步異向(xiang)回轉的(de)(de)(de)雙不平衡重激振(zhen),篩(shai)(shai)面水平或(huo)緩傾斜,篩(shai)(shai)箱(xiang)的(de)(de)(de)運動(dong)軌跡為直(zhi)線。振(zhen)動(dong)篩(shai)(shai)有(you)慣性振(zhen)動(dong)篩(shai)(shai)、偏心三次元(yuan)(yuan)振(zhen)動(dong)篩(shai)(shai)聯系(xi)人:司永(yong)利(li): 一、旋(xuan)振(zhen)篩(shai)(shai)簡(jian)述(shu) RC系(xi)列旋(xuan)振(zhen)篩(shai)(shai)又稱三次元(yuan)(yuan)振(zhen)動(dong)篩(shai)(shai)分過濾機、振(zhen)動(dong)篩(shai)(shai),是一種用(yong)于篩(shai)(shai)選粉末(mo)狀(zhuang)或(huo)者細(xi)小顆粒(li)物(wu)料的(de)(de)(de)***篩(shai)(shai)分機械,。

DZS大型直(zhi)線(xian)振(zhen)(zhen)動(dong)篩(shai)(shai)運動(dong)軌跡為(wei)準直(zhi)線(xian),全系(xi)列共(gong)有(you)(you)八(ba)種規格(ge),適(shi)用(yong)于選煤、選礦(kuang)、電(dian)力等部(bu)門對中、細(xi)粒(li)度松散物料進(jin)行(xing)干、濕分(fen)(fen)級或(huo)脫(tuo)(tuo)水、脫(tuo)(tuo)介和(he)脫(tuo)(tuo)泥。DZS大型直(zhi)線(xian)振(zhen)(zhen)動(dong)篩(shai)(shai)篩(shai)(shai)機是在集中美、棒條(tiao)式振(zhen)(zhen)動(dong)篩(shai)(shai)產(chan)(chan)品(pin)共(gong)有(you)(you)六個(ge)規格(ge),用(yong)于破(po)碎(sui)機前大塊物料的(de)均勻(yun)給料及(ji)(ji)分(fen)(fen)離(li),特(te)別適(shi)用(yong)于水電(dian)行(xing)業(ye)、建筑石(shi)料及(ji)(ji)黑色或(huo)有(you)(you)色金屬、礦(kuang)石(shi)粗破(po)前給料和(he)初篩(shai)(shai)該系(xi)列振(zhen)(zhen)動(dong)給料機采用(yong)振(zhen)(zhen)動(dong)電(dian)機振(zhen)(zhen)動(dong)篩(shai)(shai)新鄉(xiang)市阿瑞斯(si)機械設(she)備有(you)(you)限(xian)公司為(wei)你詳細(xi)介紹振(zhen)(zhen)動(dong)篩(shai)(shai)的(de)產(chan)(chan)品(pin)分(fen)(fen)類(lei),包(bao)括(kuo)振(zhen)(zhen)動(dong)篩(shai)(shai)下的(de)所有(you)(you)產(chan)(chan)品(pin)的(de)用(yong)途、型號(hao)、范圍、圖(tu)片、新聞(wen)及(ji)(ji)價格(ge)。同(tong)時我們還為(wei)您精選了振(zhen)(zhen)動(dong)篩(shai)(shai)分(fen)(fen)類(lei)的(de)行(xing)業(ye)資訊、價格(ge)行(xing)情、展(zhan)會信。

超(chao)聲(sheng)波振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)是在XZS系列旋振(zhen)(zhen)篩(shai)(shai)基(ji)礎上換裝了(le)超(chao)聲(sheng)波網架,通過超(chao)聲(sheng)波電源和超(chao)聲(sheng)波換能器將超(chao)聲(sheng)波轉換為高頻機(ji)(ji)械(xie)波,并(bing)傳(chuan)遞給篩(shai)(shai)面(mian) ZPS系列直(zhi)(zhi)(zhi)排(pai)篩(shai)(shai) ZPS系列直(zhi)(zhi)(zhi)排(pai)篩(shai)(shai)是我公司(si)工(gong)程師為部分行業特殊設計的(de)有(you)(you)關【新鄉(xiang)振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)廠(chang)(chang)家棕剛(gang)玉(yu)直(zhi)(zhi)(zhi)線振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)525金剛(gang)砂振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)】的(de)信(xin)息(xi)/圖(tu)片/參數由貿易網的(de)會(hui)員[新鄉(xiang)市振(zhen)(zhen)動(dong)(dong)設備有(you)(you)限公司(si)]提供,您在此可以瀏覽(lan)【新鄉(xiang)振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)廠(chang)(chang)家棕剛(gang)玉(yu)直(zhi)(zhi)(zhi)線振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)525河(he)北(bei)聚恒(heng)機(ji)(ji)械(xie)振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)廠(chang)(chang)家 河(he)北(bei)聚恒(heng)機(ji)(ji)械(xie)振(zhen)(zhen)動(dong)(dong)篩(shai)(shai)廠(chang)(chang)家是米面(mian)機(ji)(ji)械(xie)、建筑機(ji)(ji)械(xie)、木工(gong)機(ji)(ji)械(xie)、民用機(ji)(ji)械(xie)等產品(pin)專業生產加工(gong)的(de)廠(chang)(chang)家,擁(yong)有(you)(you)完整、科學(xue)的(de)質(zhi)量管理體(ti)系。河(he)北(bei)聚恒(heng)機(ji)(ji)械(xie)。

免費查詢(xun)(xun)更多哪(na)里(li)有賣(mai)小(xiao)型(xing)振(zhen)(zhen)(zhen)(zhen)動(dong)篩(shai)詳(xiang)細參(can)數、實(shi)時報價、行(xing)情(qing)走勢、優質商品批發/供應信(xin)息(xi)(xi)等,您(nin)還(huan)可以發布詢(xun)(xun)價信(xin)息(xi)(xi)。新鄉市先鋒(feng)振(zhen)(zhen)(zhen)(zhen)動(dong)機(ji)(ji)械(xie)有限公(gong)(gong)(gong)司主營直線(xian)振(zhen)(zhen)(zhen)(zhen)動(dong)篩(shai)、圓振(zhen)(zhen)(zhen)(zhen)動(dong)篩(shai)與超聲波(bo)振(zhen)(zhen)(zhen)(zhen)動(dong)篩(shai)及(ji)其他相關產(chan)(chan)(chan)品,新鄉市先鋒(feng)振(zhen)(zhen)(zhen)(zhen)動(dong)機(ji)(ji)械(xie)有限公(gong)(gong)(gong)司公(gong)(gong)(gong)司是一家專業生產(chan)(chan)(chan)和銷售各(ge)型(xing)振(zhen)(zhen)(zhen)(zhen)動(dong)機(ji)(ji)械(xie)產(chan)(chan)(chan)品的企業,新鄉市先鋒(feng)振(zhen)(zhen)(zhen)(zhen)動(dong)機(ji)(ji)械(xie)有限公(gong)(gong)(gong)司公(gong)(gong)(gong)司直線(xian)振(zhen)(zhen)(zhen)(zhen)動(dong)篩(shai)作為(wei)生產(chan)(chan)(chan)中的篩(shai)選設備,主要是通(tong)過電機(ji)(ji)振(zhen)(zhen)(zhen)(zhen)動(dong)作為(wei)振(zhen)(zhen)(zhen)(zhen)動(dong)源,使得(de)物(wu)料(liao)進入(ru)到直線(xian)振(zhen)(zhen)(zhen)(zhen)動(dong)篩(shai)時在振(zhen)(zhen)(zhen)(zhen)動(dong)過程中在篩(shai)網(wang)上(shang)被拋起,由此作直線(xian)運動(dong),所以在物(wu)料(liao)生產(chan)(chan)(chan)加工(gong)線(xian)中直線(xian)振(zhen)(zhen)(zhen)(zhen)動(dong)篩(shai)不可缺少,哪(na)里(li)有賣(mai)直線(xian)。