石家莊專業WRZ不銹鋼冷切鋸片
目前來(lai)看,生產金(jin)(jin)剛(gang)(gang)石(shi)鋸(ju)(ju)(ju)片(pian)(pian)的廠家(jia),為(wei)了確(que)保金(jin)(jin)剛(gang)(gang)石(shi)鋸(ju)(ju)(ju)片(pian)(pian)的性(xing)能,不(bu)但(dan)在(zai)刀(dao)(dao)頭上(shang)會(hui)(hui)選(xuan)擇進口的材料,在(zai)焊接鋸(ju)(ju)(ju)齒的方(fang)式上(shang)更會(hui)(hui)選(xuan)擇激光焊接的方(fang)式。而在(zai)經過材料的一系列摩擦之后(hou),金(jin)(jin)剛(gang)(gang)石(shi)鋸(ju)(ju)(ju)片(pian)(pian)刀(dao)(dao)頭就會(hui)(hui)出現(xian)輕微(wei)的磨(mo)損(sun),如果加上(shang)突發的意外(wai),那么刀(dao)(dao)頭大面積的磨(mo)損(sun)甚至是(shi)掉(diao)齒都(dou)會(hui)(hui)出現(xian)。因此,千(qian)萬不(bu)要(yao)輕視了金(jin)(jin)剛(gang)(gang)石(shi)鋸(ju)(ju)(ju)片(pian)(pian)磨(mo)損(sun)的問題(ti),一旦處理不(bu)好(hao),導致金(jin)(jin)剛(gang)(gang)石(shi)鋸(ju)(ju)(ju)片(pian)(pian)耐用(yong)性(xing)下降,實際(ji)上(shang)就會(hui)(hui)提高使用(yong)者使用(yong)金(jin)(jin)剛(gang)(gang)石(shi)鋸(ju)(ju)(ju)片(pian)(pian)的成(cheng)本(ben)。當(dang)然,不(bu)可否認(ren)鋸(ju)(ju)(ju)片(pian)(pian)的原始(shi)性(xing)能非(fei)常(chang)的重(zhong)要(yao),選(xuan)擇一家(jia)靠(kao)譜(pu)的金(jin)(jin)剛(gang)(gang)石(shi)鋸(ju)(ju)(ju)片(pian)(pian)廠家(jia)供(gong)貨(huo)也是(shi)非(fei)常(chang)重(zhong)要(yao)的一件(jian)事情,但(dan)在(zai)使用(yong)金(jin)(jin)剛(gang)(gang)石(shi)鋸(ju)(ju)(ju)片(pian)(pian)的時候,更是(shi)要(yao)注意。金(jin)(jin)剛(gang)(gang)石(shi)鋸(ju)(ju)(ju)片(pian)(pian)是(shi)一種含多量碳、鎢、鉬(mu)、鉻、釩等元素組成(cheng)的鋸(ju)(ju)(ju)片(pian)(pian)。石(shi)家(jia)莊專業WRZ不(bu)銹鋼冷切鋸(ju)(ju)(ju)片(pian)(pian)
任(ren)何(he)合金(jin)圓(yuan)鋸(ju)片(pian)(pian)都可(ke)以切(qie)斷不同材質,但效(xiao)(xiao)果或(huo)壽命必然是(shi)致命質量效(xiao)(xiao)果。合金(jin)圓(yuan)鋸(ju)片(pian)(pian)一般有(you)普通齒(chi)型、及(ji)多(duo)片(pian)(pian)鋸(ju)齒(chi)型和駝背(bei)(bei)齒(chi)型。普通齒(chi)型是(shi)針對(dui)密(mi)齒(chi)或(huo)精密(mi)切(qie)削(xue)(xue)、及(ji)鋁型材等。多(duo)片(pian)(pian)鋸(ju)是(shi)針對(dui)疏齒(chi)、開(kai)槽(cao)或(huo)開(kai)料及(ji)切(qie)削(xue)(xue)進刀量夠(gou)快產品。駝背(bei)(bei)齒(chi)適(shi)宜(yi)硬切(qie)削(xue)(xue)或(huo)金(jin)屬切(qie)削(xue)(xue),并(bing)具限(xian)深切(qie)削(xue)(xue)功能。任(ren)何(he)一種齒(chi)型設計根據齒(chi)距、直徑及(ji)切(qie)削(xue)(xue)力去考慮(lv)設計合金(jin)長度(du)(du)和厚(hou)度(du)(du)。散熱槽(cao)寬度(du)(du)及(ji)長度(du)(du)、角度(du)(du)也顯得十(shi)分重(zhong)要(yao),退刀槽(cao)圓(yuan)弧(hu)與(yu)齒(chi)距也直接有(you)關,齒(chi)背(bei)(bei)角度(du)(du)必須(xu)考慮(lv)切(qie)削(xue)(xue)沖(chong)擊力及(ji)排屑。當然基體厚(hou)度(du)(du)是(shi)根據刀口寬度(du)(du)減1或(huo)0.8系數值為宜(yi),使于基體齒(chi)座能有(you)夠(gou)強沖(chong)擊力。山東專(zhuan)業WRZ亞克力冷切(qie)鋸(ju)片(pian)(pian)是(shi)什么(me)合金(jin)鋸(ju)片(pian)(pian)磨齒(chi)首先要(yao)用專(zhuan)業的鋸(ju)片(pian)(pian)磨齒(chi)機(ji)。
鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)的分(fen)類:1.根(gen)據(ju)不同的材質(zhi)分(fen)類:高速鋼鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)(HSS鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian))、整體(ti)硬質(zhi)合(he)金(jin)(jin)鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)、鎢鋼鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)、鑲齒(chi)合(he)金(jin)(jin)鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)、金(jin)(jin)剛(gang)石(shi)鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)等(deng)。2.根(gen)據(ju)應用場合(he)分(fen)類:銑刀鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)、機用鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)、手動鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)、金(jin)(jin)屬(shu)用鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)(鋁業鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian),切(qie)銅鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian),不銹鋼鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)等(deng))、切(qie)管圓(yuan)鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)、木用鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)、石(shi)材鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)、切(qie)亞克力鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)等(deng)。3.表面涂層分(fen)類:白鋼鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)(本色(se))、氮(dan)化(hua)鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)(黑色(se))、鍍鈦鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)(金(jin)(jin)色(se))、氮(dan)化(hua)鉻(彩色(se))等(deng)。四、其它分(fen)類及稱(cheng)呼:切(qie)割鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian),切(qie)斷(duan)鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)、切(qie)槽鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian),切(qie)口(kou)鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)、整體(ti)鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)、鑲齒(chi)鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)、超薄(bo)鋸(ju)(ju)片(pian)(pian)(pian)(pian)(pian)(pian)(pian)(pian)。
切(qie)(qie)割(ge)不(bu)銹(xiu)(xiu)鋼(gang)該如(ru)何選(xuan)擇冷(leng)切(qie)(qie)鋸片(pian)(pian)(pian)(pian)?要(yao)點如(ru)下:1、由于(yu)市(shi)場上的(de)不(bu)銹(xiu)(xiu)鋼(gang)硬(ying)度很高(gao),轉(zhuan)速要(yao)求(qiu)低,在轉(zhuan)速不(bu)變(bian)的(de)情(qing)況下,如(ru)果(guo)用直(zhi)徑(jing)大(da)的(de)鋸片(pian)(pian)(pian)(pian)線(xian)速度就很快(kuai),大(da)直(zhi)徑(jing)鋸片(pian)(pian)(pian)(pian)就不(bu)合適,切(qie)(qie)不(bu)了幾刀(dao),用直(zhi)徑(jing)小(xiao)的(de)鋸片(pian)(pian)(pian)(pian)比大(da)直(zhi)徑(jing)的(de)耐用,所(suo)以盡量選(xuan)用275來(lai)切(qie)(qie)割(ge)不(bu)銹(xiu)(xiu)鋼(gang)。2、所(suo)有冷(leng)切(qie)(qie)鋸片(pian)(pian)(pian)(pian)的(de)設(she)備都(dou)有2個檔位,高(gao)速和低速,切(qie)(qie)割(ge)不(bu)銹(xiu)(xiu)鋼(gang)的(de)時候必須調成低速,不(bu)然切(qie)(qie)幾刀(dao)就切(qie)(qie)不(bu)動(dong)。3、切(qie)(qie)割(ge)不(bu)銹(xiu)(xiu)鋼(gang)必須要(yao)先倒冷(leng)卻液,不(bu)然會燒(shao)板,鋸片(pian)(pian)(pian)(pian)報廢。4、在切(qie)(qie)割(ge)過程中如(ru)果(guo)有一根材料(liao)沒切(qie)(qie)斷,鋸片(pian)(pian)(pian)(pian)不(bu)能(neng)用需(xu)要(yao)換鋸片(pian)(pian)(pian)(pian)的(de)時候,新鋸片(pian)(pian)(pian)(pian)不(bu)能(neng)在原來(lai)材料(liao)刀(dao)口鋸切(qie)(qie),因(yin)為原刀(dao)口處(chu)溫度很高(gao),如(ru)果(guo)在原刀(dao)口切(qie)(qie)也會燒(shao)板。安裝金剛石鋸片(pian)(pian)(pian)(pian)后要(yao)確(que)保鋸片(pian)(pian)(pian)(pian)在切(qie)(qie)割(ge)過程中運(yun)行(xing)平穩(wen)、不(bu)產生振(zhen)動(dong)。
合金(jin)鋸(ju)片(pian)在使用的(de)(de)(de)(de)(de)過(guo)程中調整旋轉,既要(yao)傳(chuan)遞切(qie)(qie)削(xue)力又要(yao)保持工(gong)作的(de)(de)(de)(de)(de)穩(wen)定(ding)(ding)(ding)性(xing)。優良的(de)(de)(de)(de)(de)合金(jin)鋸(ju)片(pian)不(bu)僅具有靜態(tai)幾何尺寸和精(jing)(jing)確度(du),更重要(yao)的(de)(de)(de)(de)(de)是它的(de)(de)(de)(de)(de)動態(tai)特(te)性(xing)。當合金(jin)鋸(ju)片(pian)連續切(qie)(qie)削(xue)時(shi),合金(jin)鋸(ju)齒切(qie)(qie)削(xue)所產生的(de)(de)(de)(de)(de)熱(re)會傳(chuan)導給基(ji)體(ti),使基(ji)體(ti)的(de)(de)(de)(de)(de)溫度(du)升高,優良的(de)(de)(de)(de)(de)基(ji)體(ti)在這種情(qing)況下還能保持表(biao)態(tai)的(de)(de)(de)(de)(de)精(jing)(jing)度(du),而質差(cha)的(de)(de)(de)(de)(de)鋸(ju)片(pian)就會發生基(ji)體(ti)翹曲,影響鋸(ju)切(qie)(qie)精(jing)(jing)度(du)。外形加工(gong)精(jing)(jing)度(du)固然必(bi)要(yao),但是鋸(ju)體(ti)材料的(de)(de)(de)(de)(de)均勻(yun)性(xing),鋸(ju)體(ti)加工(gong)時(shi)熱(re)處理工(gong)藝可(ke)能都會造成鋸(ju)體(ti)在受熱(re)和高速運轉的(de)(de)(de)(de)(de)不(bu)穩(wen)定(ding)(ding)(ding)性(xing)。木(mu)用圓鋸(ju)片(pian)特(te)點:獨特(te)工(gong)藝的(de)(de)(de)(de)(de)鋸(ju)板(ban)處理,低(di)偏擺,切(qie)(qie)削(xue)更穩(wen)定(ding)(ding)(ding)。湖南專(zhuan)業WRZ木(mu)工(gong)鋸(ju)片(pian)哪里有
木工鋸片貼面板用什么樣(yang)的鋸片?石家莊專業WRZ不銹(xiu)鋼冷(leng)切鋸片
散熱線是為(wei)了使鋸(ju)(ju)(ju)片(pian)(pian)在加工(gong)中(zhong)快速散熱。如果不及時散熱,鋸(ju)(ju)(ju)片(pian)(pian)就會變形,從(cong)而影響鋸(ju)(ju)(ju)片(pian)(pian)的(de)(de)切削質量(liang)(liang),嚴重時會導致加工(gong)不能(neng)正常進行。散熱線是由光滑的(de)(de)曲線組成,由激光直(zhi)接切割而成,兩端是小圓孔或橢圓小孔,直(zhi)徑(jing)約為(wei)0.5mm。散熱線的(de)(de)數(shu)(shu)量(liang)(liang)一般(ban)(ban)由鋸(ju)(ju)(ju)片(pian)(pian)的(de)(de)大(da)小和(he)刀頭的(de)(de)數(shu)(shu)量(liang)(liang)來(lai)決定(ding)。直(zhi)徑(jing)在300mm或300mm以上的(de)(de)鋸(ju)(ju)(ju)片(pian)(pian)本體大(da)都采用(yong)散熱線,設(she)計(ji)數(shu)(shu)量(liang)(liang)為(wei)刀頭數(shu)(shu)量(liang)(liang)的(de)(de)倍(bei)數(shu)(shu),一般(ban)(ban)是3~5條。多片(pian)(pian)鋸(ju)(ju)(ju)或薄片(pian)(pian)鋸(ju)(ju)(ju)因其鋸(ju)(ju)(ju)片(pian)(pian)直(zhi)徑(jing)不大(da),不建議用(yong)散熱線,大(da)多設(she)計(ji)成散熱孔。石家莊專業WRZ不銹鋼冷切鋸(ju)(ju)(ju)片(pian)(pian)
德(de)(de)清匯鋒(feng)精密工(gong)具有(you)(you)限公(gong)司位于(yu)浙江省湖州市(shi)德(de)(de)清縣新安(an)鎮洋角(jiao)郎(lang)(中南高科運河智谷產(chan)(chan)業園12-1,交通便(bian)利(li),環境優美,是一家生產(chan)(chan)型(xing)企業。是一家有(you)(you)限責任公(gong)司企業,隨著(zhu)市(shi)場(chang)的(de)(de)發展(zhan)和生產(chan)(chan)的(de)(de)需求(qiu),與多家企業合(he)(he)作研究,在(zai)原有(you)(you)產(chan)(chan)品的(de)(de)基礎上經過不斷改進,追(zhui)求(qiu)新型(xing),在(zai)強化(hua)內部管(guan)理,完善結構調整的(de)(de)同時,良好(hao)的(de)(de)質(zhi)量、合(he)(he)理的(de)(de)價格、完善的(de)(de)服務(wu),在(zai)業界受到寬泛好(hao)評。公(gong)司業務(wu)涵(han)蓋(gai)硬(ying)質(zhi)合(he)(he)金(jin)鋸片生產(chan)(chan)加工(gong),五金(jin)產(chan)(chan)品金(jin)屬材料,價格合(he)(he)理,品質(zhi)有(you)(you)保證,深受廣大客(ke)戶的(de)(de)歡(huan)迎。德(de)(de)清匯鋒(feng)自成立以來,一直堅持(chi)走正(zheng)規化(hua)、專(zhuan)業化(hua)路線,得(de)到了廣大客(ke)戶及(ji)社會(hui)各界的(de)(de)普遍認可與大力(li)支持(chi)。
本文來(lai)自湖南歸途旅游咨詢有(you)限公司(si)://ijds.cn/Article/19e8499896.html
成(cheng)都(dou)飼料添加(jia)劑精細化(hua)學品哪(na)家(jia)好
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一(yi)體化氣浮設備安(an)裝要點:1、設備安(an)裝前,必(bi)須(xu)夯(hang)實地基。并(bing)用混凝土砂漿墊高200-300mm。也可架(jia)空安(an)裝,但(dan)基礎必(bi)須(xu)能承擔設備運行時的重(zhong)量。2、設備就位后需(xu)調整水(shui)平。3、設備需(xu)設清洗(xi)用下(xia)水(shui)道,可挖明渠 。
納米(mi)(mi)防(fang)(fang)水(shui)(shui)(shui)(shui)抗污(wu)劑的(de)優(you)點:防(fang)(fang)水(shui)(shui)(shui)(shui)性(xing)(xing)優(you)異。納米(mi)(mi)防(fang)(fang)水(shui)(shui)(shui)(shui)抗污(wu)劑可(ke)(ke)以防(fang)(fang)止雨(yu)水(shui)(shui)(shui)(shui)、污(wu)物(wu)、油污(wu)等(deng)物(wu)質滲入物(wu)體(ti)(ti)表面(mian),保持物(wu)體(ti)(ti)表面(mian)的(de)干(gan)燥(zao)性(xing)(xing)和(he)潔凈性(xing)(xing)。抗污(wu)性(xing)(xing)能強。由于具有(you)超(chao)級疏水(shui)(shui)(shui)(shui)性(xing)(xing)和(he)抗粘附性(xing)(xing),納米(mi)(mi)防(fang)(fang)水(shui)(shui)(shui)(shui)抗污(wu)劑可(ke)(ke)以有(you)效(xiao)抵抗污(wu)物(wu)附著, 。
由于(yu)單晶(jing)硅(gui)電(dian)池(chi)片(pian)(pian)(pian)和多晶(jing)硅(gui)電(dian)池(chi)片(pian)(pian)(pian)前期生產工藝(yi)的(de)不同,使它們從(cong)(cong)外觀(guan)到電(dian)性能都有一些區別(bie)。從(cong)(cong)外觀(guan)上看:單晶(jing)硅(gui)電(dian)池(chi)片(pian)(pian)(pian)四個角(jiao)呈圓弧(hu)狀,表(biao)面(mian)沒有花(hua)紋;多晶(jing)硅(gui)電(dian)池(chi)片(pian)(pian)(pian)四個角(jiao)為方角(jiao),表(biao)面(mian)有類似冰花(hua)一樣的(de)花(hua)紋。對(dui)于(yu)使用者 。
高(gao)效(xiao)液(ye)相(xiang)(xiang)色(se)(se)譜(pu)(pu)(pu)儀高(gao)效(xiao)液(ye)相(xiang)(xiang)色(se)(se)譜(pu)(pu)(pu)儀的(de)系(xi)統(tong)由儲液(ye)器、泵(beng)、進(jin)樣器、色(se)(se)譜(pu)(pu)(pu)柱、檢測器、記(ji)錄(lu)儀等幾部分組成(cheng)。儲液(ye)器中(zhong)(zhong)的(de)流動(dong)相(xiang)(xiang)被(bei)高(gao)壓泵(beng)打入系(xi)統(tong),樣品溶液(ye)經進(jin)樣器進(jin)入流動(dong)相(xiang)(xiang),被(bei)流動(dong)相(xiang)(xiang)載入色(se)(se)譜(pu)(pu)(pu)柱(固定(ding)相(xiang)(xiang))內,由于(yu)樣品溶液(ye)中(zhong)(zhong) 。
怎么喝(he)(he)酒(jiu)才科學?這5點(dian)一定要(yao)知道適量(liang)飲酒(jiu)有益(yi)(yi)身心,但是過(guo)度喝(he)(he)酒(jiu)或者喝(he)(he)酒(jiu)的方(fang)式不(bu)對就(jiu)會(hui)有害健康,所以我們必須要(yao)學會(hui)喝(he)(he)酒(jiu)。飯(fan)桌上有句話叫無酒(jiu)不(bu)成席,可以看出,中國人(ren)只要(yao)吃飯(fan)經(jing)常會(hui)喝(he)(he)酒(jiu)。適量(liang)喝(he)(he)酒(jiu)有益(yi)(yi)身體健康 。
WAMFLO®收塵機(ji)功(gong)能WAMFLO®收塵機(ji)既可以用于(yu)過(guo)濾,又可以用于(yu)通風。法蘭(lan)連接的機(ji)身、不同類型濾芯和(he)過(guo)濾元件的多種組合,以及(ji)單獨集成的氣動(dong)清理系統設計,確保了模(mo)塊化系統具有極高的 。
空(kong)心軸(zhou)滑(hua)環也叫過孔(kong)滑(hua)環,是中心帶孔(kong)的導電滑(hua)環統稱,滑(hua)環中心的孔(kong)位穿套在設(she)備旋(xuan)(xuan)轉(zhuan)(zhuan)軸(zhou)或固(gu)定軸(zhou)上,并(bing)用螺釘固(gu)定,實現(xian)設(she)備的傳輸(shu)介質進(jin)行旋(xuan)(xuan)轉(zhuan)(zhuan)連(lian)接。滿足360度無限制旋(xuan)(xuan)轉(zhuan)(zhuan)的電流、電信號、射頻(pin)、數(shu)據、氣體、液體等 。
整(zheng)(zheng)柜派送中海(hai)(hai)運(yun)(yun)整(zheng)(zheng)柜的優點:1、海(hai)(hai)運(yun)(yun)整(zheng)(zheng)柜操作(zuo)(zuo)方(fang)便2、海(hai)(hai)運(yun)(yun)整(zheng)(zheng)柜裝(zhuang)卸(xie)貨(huo)物(wu)方(fang)便海(hai)(hai)運(yun)(yun)整(zheng)(zheng)柜的缺點:1、海(hai)(hai)運(yun)(yun)整(zheng)(zheng)柜價(jia)格比較貴2、海(hai)(hai)運(yun)(yun)整(zheng)(zheng)柜裝(zhuang)貨(huo)要合理(li)。海(hai)(hai)運(yun)(yun)整(zheng)(zheng)柜的優點:1、海(hai)(hai)運(yun)(yun)整(zheng)(zheng)柜操作(zuo)(zuo)方(fang)便因(yin)為海(hai)(hai)運(yun)(yun)整(zheng)(zheng)柜都(dou)是一個(ge)公(gong)司的貨(huo)物(wu), 。
聚脲噴涂技(ji)術在裂(lie)(lie)紋(wen)修(xiu)補(bu)(bu)工程中(zhong)有(you)哪些應用(yong),接下(xia)來聯(lian)創新材料來講述(shu)一下(xia):聚脲彈(dan)性體具有(you)粘附力強(qiang)、柔(rou)韌性好、固化快、涂層(ceng)厚等特點。適用(yong)于有(you)裂(lie)(lie)縫的屋頂、墻面、池(chi)壁(bi)、護坡、路(lu)面等地方(fang)的修(xiu)補(bu)(bu)工作,修(xiu)補(bu)(bu)時需(xu)要(yao)將(jiang)裂(lie)(lie)縫 。