榆林別墅用K型報價 <榆林>博恒建筑科技有限公司
榆林(lin)成(cheng)(cheng)品(pin)(pin)天(tian)溝(gou)(gou)(gou)(gou),榆林(lin)鋁合(he)金(jin)(jin)天(tian)溝(gou)(gou)(gou)(gou),榆林(lin)金(jin)(jin)屬雨(yu)水(shui)(shui)(shui)槽,榆林(lin)鋁合(he)金(jin)(jin)水(shui)(shui)(shui)管(guan);屋面排水(shui)(shui)(shui)分為(wei)有組(zu)織排水(shui)(shui)(shui)和自由排水(shui)(shui)(shui),因此,天(tian)溝(gou)(gou)(gou)(gou)同(tong)樣可以使用在(zai)輕鋼(gang)別墅(shu)建(jian)筑(zhu)中(zhong),天(tian)溝(gou)(gou)(gou)(gou)或(huo)檐(yan)溝(gou)(gou)(gou)(gou)的(de)作用是(shi)(shi)將輕鋼(gang)結構(gou)的(de)屋面雨(yu)水(shui)(shui)(shui)有組(zu)織的(de)收(shou)集到(dao)天(tian)溝(gou)(gou)(gou)(gou)再經(jing)由雨(yu)水(shui)(shui)(shui)管(guan)排放,一(yi)是(shi)(shi)保護輕鋼(gang)別墅(shu)建(jian)筑(zhu)墻(qiang)(qiang)體和地面墻(qiang)(qiang)角(jiao)不(bu)(bu)(bu)受(shou)雨(yu)水(shui)(shui)(shui)滴(di)濺導致(zhi)墻(qiang)(qiang)體材(cai)(cai)(cai)料(liao)(liao)受(shou)到(dao)腐(fu)蝕,保護建(jian)筑(zhu)正常使用功(gong)能。二是(shi)(shi)可以建(jian)筑(zhu)美觀和品(pin)(pin)質(zhi)(zhi)的(de)表現力(li)。天(tian)溝(gou)(gou)(gou)(gou)的(de)材(cai)(cai)(cai)料(liao)(liao)分為(wei)金(jin)(jin)屬類與非金(jin)(jin)屬類材(cai)(cai)(cai)料(liao)(liao)。非金(jin)(jin)屬常見材(cai)(cai)(cai)質(zhi)(zhi)有水(shui)(shui)(shui)泥(ni)澆注、樹脂和PVC材(cai)(cai)(cai)質(zhi)(zhi),金(jin)(jin)屬類天(tian)溝(gou)(gou)(gou)(gou)常見的(de)有銅質(zhi)(zhi)、不(bu)(bu)(bu)銹(xiu)鋼(gang)材(cai)(cai)(cai)質(zhi)(zhi)和彩(cai)鋁材(cai)(cai)(cai)質(zhi)(zhi)、鋅合(he)金(jin)(jin)材(cai)(cai)(cai)質(zhi)(zhi)等。天(tian)溝(gou)(gou)(gou)(gou)設(she)計時(shi)應(ying)根據雨(yu)量大(da)小考慮選(xuan)擇天(tian)溝(gou)(gou)(gou)(gou)尺寸;天(tian)溝(gou)(gou)(gou)(gou)的(de)安裝工藝上(shang),應(ying)注意(yi)安裝牢固。不(bu)(bu)(bu)銹(xiu)鋼(gang)材(cai)(cai)(cai)質(zhi)(zhi)若采用焊接,應(ying)采用材(cai)(cai)(cai)質(zhi)(zhi)相同(tong)的(de)不(bu)(bu)(bu)銹(xiu)鋼(gang)絲焊條,焊縫飽滿(man)并防腐(fu)。彩(cai)鋁天(tian)溝(gou)(gou)(gou)(gou)在(zai)組(zu)裝檐(yan)溝(gou)(gou)(gou)(gou)時(shi)應(ying)注意(yi)連接處搭接3CM并進(jin)行鉚固,采用耐候結構(gou)膠密封。用過(guo)程中(zhong),要注意(yi)定期清理(li)天(tian)溝(gou)(gou)(gou)(gou)內的(de)雜(za)物,避(bi)免(mian)堵塞。在(zai)冬季嚴(yan)寒地區,輕鋼(gang)別墅(shu)屋面及天(tian)溝(gou)(gou)(gou)(gou)還應(ying)重視融雪,避(bi)免(mian)積雪導致(zhi)屋面及天(tian)溝(gou)(gou)(gou)(gou)超出設(she)計荷載(zai)或(huo)損(sun)壞屋面及天(tian)溝(gou)(gou)(gou)(gou)系(xi)統,造(zao)成(cheng)(cheng)隱患。
榆林鋁合(he)金(jin)成品天(tian)溝(gou)(gou)(gou)(gou)(gou)(gou)安(an)裝,榆林鋁合(he)金(jin)雨(yu)水(shui)(shui)槽定(ding)制尺寸,榆林屋(wu)(wu)(wu)(wu)面檐口(kou)配套鋁合(he)金(jin)落水(shui)(shui)系統(tong)(tong)(tong);溝(gou)(gou)(gou)(gou)(gou)(gou)外(wai)(wai)排(pai)(pai)水(shui)(shui)系統(tong)(tong)(tong)的組成:外(wai)(wai)排(pai)(pai)水(shui)(shui)系統(tong)(tong)(tong)是用屋(wu)(wu)(wu)(wu)面明(ming)溝(gou)(gou)(gou)(gou)(gou)(gou)(稱為天(tian)溝(gou)(gou)(gou)(gou)(gou)(gou))收集并排(pai)(pai)泄屋(wu)(wu)(wu)(wu)面雨(yu)雪(xue)水(shui)(shui)至(zhi)設于外(wai)(wai)墻上的立管(guan),并通過(guo)(guo)該立管(guan)特此部分雨(yu)雪(xue)水(shui)(shui)排(pai)(pai)入(ru)室外(wai)(wai)雨(yu)水(shui)(shui)明(ming)溝(gou)(gou)(gou)(gou)(gou)(gou)或地(di)下暗管(guan)的雨(yu)水(shui)(shui)排(pai)(pai)除系統(tong)(tong)(tong)。或者是用屋(wu)(wu)(wu)(wu)面成天(tian)溝(gou)(gou)(gou)(gou)(gou)(gou)集水(shui)(shui)而(er)通過(guo)(guo)設于屋(wu)(wu)(wu)(wu)面上的雨(yu)水(shui)(shui)到室內(nei)懸吊管(guan)輸送至(zhi)室外(wai)(wai)墻的立管(guan)再排(pai)(pai)入(ru)室外(wai)(wai)面水(shui)(shui)道的落水(shui)(shui)系統(tong)(tong)(tong)。因此天(tian)溝(gou)(gou)(gou)(gou)(gou)(gou)外(wai)(wai)排(pai)(pai)水(shui)(shui)系統(tong)(tong)(tong)應(ying)由天(tian)溝(gou)(gou)(gou)(gou)(gou)(gou),雨(yu)水(shui)(shui)斗、排(pai)(pai)水(shui)(shui)立管(guan)等(deng)組成。天(tian)溝(gou)(gou)(gou)(gou)(gou)(gou)的設置及作(zuo)法(fa):采用天(tian)溝(gou)(gou)(gou)(gou)(gou)(gou)外(wai)(wai)排(pai)(pai)水(shui)(shui)系統(tong)(tong)(tong)時(shi),應(ying)以(yi)建筑的伸縮縫或沉降縫作(zuo)為反(fan)面分水(shui)(shui)為了防止天(tian)溝(gou)(gou)(gou)(gou)(gou)(gou)末端處積水(shui)(shui),應(ying)在天(tian)溝(gou)(gou)(gou)(gou)(gou)(gou)的末端設置溢流口(kou),蹬流口(kou)的下緣比(bi)天(tian)溝(gou)(gou)(gou)(gou)(gou)(gou)上絳低50一 100mm,天(tian)溝(gou)(gou)(gou)(gou)(gou)(gou)過(guo)(guo)水(shui)(shui)斷面視屋(wu)(wu)(wu)(wu)面的情(qing)況,可以(yi)是矩形(xing),梯(ti)形(xing)等(deng)。天(tian)溝(gou)(gou)(gou)(gou)(gou)(gou)坡度(du)不宜(yi)太大(da),以(yi)免(mian)屋(wu)(wu)(wu)(wu)頂(ding)墊層過(guo)(guo)厚而(er)增加結構的荷載重量(liang):但(dan)也不宜(yi)太小,以(yi)免(mian)屋(wu)(wu)(wu)(wu)頂(ding)漏水(shui)(shui)和施工困難,坡度(du)一般以(yi)0.003~0.006為宜(yi),且天(tian)溝(gou)(gou)(gou)(gou)(gou)(gou)長度(du)應(ying)小于50m。榆林鋁合(he)金(jin)天(tian)溝(gou)(gou)(gou)(gou)(gou)(gou)

榆林(lin)(lin)鋁合金(jin)(jin)成品天(tian)溝(gou)安裝(zhuang),榆林(lin)(lin)鋁合金(jin)(jin)雨(yu)水(shui)(shui)(shui)(shui)(shui)(shui)槽定(ding)制尺寸(cun),榆林(lin)(lin)屋面(mian)檐口(kou)配套(tao)鋁合金(jin)(jin)落(luo)(luo)(luo)(luo)水(shui)(shui)(shui)(shui)(shui)(shui)系(xi)(xi)統;落(luo)(luo)(luo)(luo)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)是(shi)(shi)(shi)指房頂雨(yu)水(shui)(shui)(shui)(shui)(shui)(shui)向外(wai)排(pai)(pai)(pai)出的(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)道。落(luo)(luo)(luo)(luo)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)收集(ji)屋面(mian)雨(yu)水(shui)(shui)(shui)(shui)(shui)(shui),集(ji)中(zhong)引(yin)至地(di)面(mian)以(yi)(yi)(yi)下(xia)鋪設的(de)(de)(de)(de)(de)雨(yu)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)內。落(luo)(luo)(luo)(luo)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)是(shi)(shi)(shi)收集(ji)屋頂上(shang)的(de)(de)(de)(de)(de)雨(yu)水(shui)(shui)(shui)(shui)(shui)(shui),并將水(shui)(shui)(shui)(shui)(shui)(shui)排(pai)(pai)(pai)到(dao)(dao)地(di)面(mian)上(shang)的(de)(de)(de)(de)(de)一種管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)材(cai)(cai)。這(zhe)在(zai)農村的(de)(de)(de)(de)(de)自(zi)建房很(hen)(hen)常見,對于(yu)(yu)城里的(de)(de)(de)(de)(de)高(gao)樓大廈,還沒有(you)這(zhe)么長的(de)(de)(de)(de)(de)落(luo)(luo)(luo)(luo)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan),即便是(shi)(shi)(shi)可(ke)以(yi)(yi)(yi)連接,也不(bu)是(shi)(shi)(shi)很(hen)(hen)。排(pai)(pai)(pai)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)其實也很(hen)(hen)好理解(jie),它(ta)被分為雨(yu)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)系(xi)(xi)、污水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)系(xi)(xi)及(ji)合流管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)系(xi)(xi)。因此排(pai)(pai)(pai)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)我們隨(sui)處(chu)可(ke)見,比(bi)如家裝(zhuang)中(zhong)的(de)(de)(de)(de)(de)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)就(jiu)屬(shu)于(yu)(yu)排(pai)(pai)(pai)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)中(zhong)的(de)(de)(de)(de)(de)一種。兩者存(cun)在(zai)的(de)(de)(de)(de)(de)一個(ge)很(hen)(hen)明顯的(de)(de)(de)(de)(de)不(bu)同就(jiu)是(shi)(shi)(shi)適用(yong)于(yu)(yu)的(de)(de)(de)(de)(de)范圍不(bu)同,落(luo)(luo)(luo)(luo)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)用(yong)于(yu)(yu)室(shi)外(wai),而排(pai)(pai)(pai)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)則是(shi)(shi)(shi)室(shi)內外(wai)都可(ke)以(yi)(yi)(yi)用(yong)。管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)壁厚(hou)薄(bo)不(bu)同,落(luo)(luo)(luo)(luo)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)壁比(bi)較(jiao)薄(bo),這(zhe)是(shi)(shi)(shi)考慮到(dao)(dao)兩個(ge)問題,一是(shi)(shi)(shi)擔心落(luo)(luo)(luo)(luo)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)安裝(zhuang)不(bu)牢(lao)固下(xia)墜(zhui)砸到(dao)(dao)人(ren),危及(ji)人(ren)身;二是(shi)(shi)(shi)它(ta)不(bu)是(shi)(shi)(shi)承壓(ya)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)路(lu),管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)壁加厚(hou)浪費成本。而排(pai)(pai)(pai)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)的(de)(de)(de)(de)(de)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)壁基(ji)本上(shang)都比(bi)較(jiao)厚(hou)。另(ling)外(wai)還有(you)材(cai)(cai)質要求(qiu)的(de)(de)(de)(de)(de)不(bu)同,落(luo)(luo)(luo)(luo)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)是(shi)(shi)(shi)長期處(chu)于(yu)(yu)室(shi)外(wai),經歷著風(feng)吹雨(yu)淋,所以(yi)(yi)(yi)一般的(de)(de)(de)(de)(de)落(luo)(luo)(luo)(luo)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)都是(shi)(shi)(shi)具有(you)防(fang)紫外(wai)線功能的(de)(de)(de)(de)(de);而排(pai)(pai)(pai)水(shui)(shui)(shui)(shui)(shui)(shui)管(guan)(guan)(guan)(guan)(guan)(guan)(guan)(guan)就(jiu)不(bu)會有(you)這(zhe)種功能。

榆林鋁(lv)合(he)金(jin)(jin)成品(pin)天(tian)(tian)(tian)(tian)溝(gou)(gou)安裝,榆林鋁(lv)合(he)金(jin)(jin)雨水(shui)槽定(ding)制(zhi)(zhi)尺(chi)(chi)寸,榆林屋面(mian)檐口配套鋁(lv)合(he)金(jin)(jin)落(luo)水(shui)系(xi)(xi)統;落(luo)水(shui)系(xi)(xi)統優點介紹美麗大(da)方,協調自(zi)然的(de)(de)(de)(de)裝飾效(xiao)果)金(jin)(jin)屬質(zhi)感為(wei)建(jian)筑(zhu)帶來(lai)強烈(lie)的(de)(de)(de)(de)表現(xian)力。)不(bu)(bu)(bu)(bu)同(tong)色彩的(de)(de)(de)(de)選(xuan)擇給設計師(shi)的(de)(de)(de)(de)想(xiang)象以(yi)廣闊(kuo)的(de)(de)(de)(de)空(kong)間。)與(yu)建(jian)筑(zhu)物本(ben)身(shen)色彩的(de)(de)(de)(de)搭配顯示了(le)建(jian)筑(zhu)物的(de)(de)(de)(de)自(zi)然大(da)氣。歷久如新,耐用(yong)(yong))彩鋁(lv)不(bu)(bu)(bu)(bu)會被氧化,這是(shi)(shi)(shi)(shi)因(yin)為(wei)鋁(lv)的(de)(de)(de)(de)表面(mian)會形成肉眼看(kan)不(bu)(bu)(bu)(bu)到的(de)(de)(de)(de)保護膜。)彩鋁(lv)表層(ceng)的(de)(de)(de)(de)聚酯涂層(ceng),可以(yi)保證(zheng)其在(zai)嚴寒高溫,酸雨鹽蝕等(deng)惡劣多變的(de)(de)(de)(de)氣候條件下保持艷(yan)麗的(de)(de)(de)(de)本(ben)色。)由于(yu)鋁(lv)合(he)金(jin)(jin)的(de)(de)(de)(de)比重較(jiao)(jiao)(jiao)低,加上(shang)(shang)金(jin)(jin)屬的(de)(de)(de)(de)掛鉤,使(shi)天(tian)(tian)(tian)(tian)溝(gou)(gou)受力可靠。天(tian)(tian)(tian)(tian)溝(gou)(gou)防(fang)水(shui)中(zhong)存在(zai)的(de)(de)(de)(de)問題彩鋁(lv)成品(pin)天(tian)(tian)(tian)(tian)溝(gou)(gou)是(shi)(shi)(shi)(shi)屋面(mian)防(fang)水(shui)比較(jiao)(jiao)(jiao)特殊(shu)的(de)(de)(de)(de)部分,看(kan)似不(bu)(bu)(bu)(bu)起(qi)眼的(de)(de)(de)(de)位置,但卻是(shi)(shi)(shi)(shi)雨水(shui) 流過(guo)的(de)(de)(de)(de)必(bi)經之處(chu),今天(tian)(tian)(tian)(tian)來(lai)給大(da)家說說天(tian)(tian)(tian)(tian)溝(gou)(gou)防(fang)水(shui)中(zhong)存在(zai)的(de)(de)(de)(de)問題。為(wei)什么現(xian)在(zai)天(tian)(tian)(tian)(tian)溝(gou)(gou)一般(ban)(ban)都是(shi)(shi)(shi)(shi)定(ding)制(zhi)(zhi),而不(bu)(bu)(bu)(bu)是(shi)(shi)(shi)(shi)購買成品(pin)呢,主要(yao)(yao)就(jiu)是(shi)(shi)(shi)(shi)因(yin)為(wei)這個需要(yao)(yao)結合(he)建(jian)筑(zhu)自(zi)身(shen)的(de)(de)(de)(de)尺(chi)(chi)寸與(yu)規格來(lai)安裝,一旦(dan)在(zai)尺(chi)(chi)寸上(shang)(shang)面(mian)有(you)所不(bu)(bu)(bu)(bu)符(fu),那么就(jiu)無(wu)法有(you)效(xiao)地進(jin)行安裝了(le),所以(yi)想(xiang)要(yao)(yao)購買使(shi)用(yong)(yong)成品(pin)天(tian)(tian)(tian)(tian)溝(gou)(gou)的(de)(de)(de)(de)話,也是(shi)(shi)(shi)(shi)要(yao)(yao)看(kan)消費者自(zi)身(shen)的(de)(de)(de)(de)安裝條件是(shi)(shi)(shi)(shi)否與(yu)成品(pin)的(de)(de)(de)(de)產品(pin)尺(chi)(chi)寸相符(fu)合(he),一般(ban)(ban)來(lai)說現(xian)在(zai)市場(chang)當(dang)中(zhong)對于(yu)成品(pin)的(de)(de)(de)(de)規格也都是(shi)(shi)(shi)(shi)控制(zhi)(zhi)在(zai)一些比較(jiao)(jiao)(jiao)常見的(de)(de)(de)(de)建(jian)筑(zhu)尺(chi)(chi)寸上(shang)(shang)面(mian)的(de)(de)(de)(de),不(bu)(bu)(bu)(bu)是(shi)(shi)(shi)(shi)特殊(shu)的(de)(de)(de)(de)建(jian)筑(zhu)一般(ban)(ban)都找得(de)到適(shi)用(yong)(yong)的(de)(de)(de)(de)。榆林鋁(lv)合(he)金(jin)(jin)天(tian)(tian)(tian)(tian)溝(gou)(gou)

榆(yu)林成(cheng)品(pin)天(tian)溝(gou)安(an)(an)裝(zhuang),榆(yu)林鋁(lv)(lv)合金天(tian)溝(gou)定制,榆(yu)林鋁(lv)(lv)合金方形雨水(shui)管規格60*80,80*100,90*120等;附著(zhu)力(li)(li)(li)1、檢驗(yan)附著(zhu)力(li)(li)(li)的(de)方法(fa)(fa)通常使用劃(hua)格法(fa)(fa)和(he)劃(hua)圈法(fa)(fa)。2、劃(hua)格法(fa)(fa)分為(wei)(wei)6級(ji),從0級(ji)開(kai)始到5級(ji)結束(shu)。0級(ji)附著(zhu)力(li)(li)(li)。3、劃(hua)圈法(fa)(fa)分為(wei)(wei)6級(ji),從1級(ji)開(kai)始到7級(ji)結束(shu),1級(ji)附著(zhu)力(li)(li)(li)。4、標準(zhun)附著(zhu)力(li)(li)(li)檢測不(bu)(bu)次(ci)于1級(ji)。產品(pin)成(cheng)品(pin)保護(hu)1、產品(pin)包裝(zhuang):為(wei)(wei)避免運運送過程中對產品(pin)造成(cheng)損壞,產品(pin)驗(yan)收(shou)時外(wai)包裝(zhuang)應(ying)有高強(qiang)瓦棱紙箱。2、彩(cai)鋁(lv)(lv)雨落水(shui)施工(gong)(gong)(gong)必須在所有的(de)工(gong)(gong)(gong)序(xu)完(wan)工(gong)(gong)(gong)后進(jin)行,不(bu)(bu)得與(yu)其(qi)它工(gong)(gong)(gong)種穿(chuan)插作(zuo)業,以免影(ying)響(xiang)彩(cai)鋁(lv)(lv)落水(shui)的(de)安(an)(an)裝(zhuang)質量。若工(gong)(gong)(gong)程安(an)(an)裝(zhuang)確要交叉作(zuo)業時,應(ying)采取有效(xiao)的(de)措施,特(te)別注意要做(zuo)好(hao)彩(cai)鋁(lv)(lv)雨落水(shui)保護(hu),嚴(yan)(yan)禁損。3、應(ying)嚴(yan)(yan)禁攀(pan)爬(pa)或(huo)放置物品(pin),不(bu)(bu)得硬(ying)物銳器接觸,更不(bu)(bu)能要其(qi)上懸掛重物。4、施工(gong)(gong)(gong)人員必須穿(chuan)軟鞋(xie)底或(huo)布鞋(xie)進(jin)入施工(gong)(gong)(gong)現場操(cao)作(zuo),嚴(yan)(yan)禁在屋面傾倒垃圾。以免落水(shui)管堵塞。
