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襄陽偉奇雕刻白(A級)石材服務商

2022-06-10
襄陽偉奇雕刻白(A級)石材服務商

近年來中(zhong)(zhong)國作為(wei)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)開(kai)采和加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)領頭國,生產240個(ge)(ge)品(pin)種(zhong)的(de)(de)(de)花崗石(shi)(shi)(shi),石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)總產量(liang)約占(zhan)(zhan)世(shi)界的(de)(de)(de)65%。在石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)中(zhong)(zhong),石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)工(gong)(gong)(gong)(gong)(gong)(gong)具(ju)占(zhan)(zhan)有(you)重(zhong)要(yao)地位。石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)主(zhu)要(yao)包括石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)鋸(ju)割(ge)(ge)(ge)(ge)、石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)磨(mo)(mo)(mo)(mo)削(xue)和石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)拋光。石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)工(gong)(gong)(gong)(gong)(gong)(gong)具(ju)主(zhu)要(yao)采用(yong)金(jin)(jin)(jin)剛(gang)(gang)石(shi)(shi)(shi)磨(mo)(mo)(mo)(mo)料和陶瓷磨(mo)(mo)(mo)(mo)料。在加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)中(zhong)(zhong),鋸(ju)切(qie)(qie)(qie)(qie)(qie)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)是(shi)機(ji)械(xie)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)一道工(gong)(gong)(gong)(gong)(gong)(gong)序,鋸(ju)切(qie)(qie)(qie)(qie)(qie)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)成本占(zhan)(zhan)整個(ge)(ge)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)成本的(de)(de)(de)50%以上。目前,石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)等(deng)硬(ying)脆材(cai)(cai)(cai)(cai)(cai)料的(de)(de)(de)切(qie)(qie)(qie)(qie)(qie)割(ge)(ge)(ge)(ge)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)主(zhu)要(yao)采用(yong)各種(zhong)金(jin)(jin)(jin)剛(gang)(gang)石(shi)(shi)(shi)切(qie)(qie)(qie)(qie)(qie)割(ge)(ge)(ge)(ge)工(gong)(gong)(gong)(gong)(gong)(gong)具(ju)。由于(yu)(yu)金(jin)(jin)(jin)剛(gang)(gang)石(shi)(shi)(shi)是(shi)自然界已知的(de)(de)(de)硬(ying)物質,其優異性(xing)能決定其在石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)等(deng)硬(ying)脆材(cai)(cai)(cai)(cai)(cai)料切(qie)(qie)(qie)(qie)(qie)割(ge)(ge)(ge)(ge)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)領域具(ju)有(you)廣闊(kuo)的(de)(de)(de)發展前景。應用(yong)金(jin)(jin)(jin)剛(gang)(gang)石(shi)(shi)(shi)工(gong)(gong)(gong)(gong)(gong)(gong)具(ju)鋸(ju)切(qie)(qie)(qie)(qie)(qie)硬(ying)脆材(cai)(cai)(cai)(cai)(cai)料的(de)(de)(de)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)方(fang)式主(zhu)要(yao)有(you)圓鋸(ju)片(pian)切(qie)(qie)(qie)(qie)(qie)割(ge)(ge)(ge)(ge)、金(jin)(jin)(jin)剛(gang)(gang)石(shi)(shi)(shi)帶鋸(ju)切(qie)(qie)(qie)(qie)(qie)割(ge)(ge)(ge)(ge)、金(jin)(jin)(jin)剛(gang)(gang)石(shi)(shi)(shi)框(kuang)架(jia)鋸(ju)切(qie)(qie)(qie)(qie)(qie)割(ge)(ge)(ge)(ge)、金(jin)(jin)(jin)剛(gang)(gang)石(shi)(shi)(shi)串(chuan)珠繩鋸(ju)切(qie)(qie)(qie)(qie)(qie)割(ge)(ge)(ge)(ge)等(deng)。重(zhong)慶石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)加(jia)工(gong)(gong)(gong)(gong)(gong)(gong)盡(jin)管每種(zhong)方(fang)法有(you)不同的(de)(de)(de)特點和應用(yong)范圍,但其切(qie)(qie)(qie)(qie)(qie)割(ge)(ge)(ge)(ge)機(ji)理(li)和金(jin)(jin)(jin)剛(gang)(gang)石(shi)(shi)(shi)磨(mo)(mo)(mo)(mo)損機(ji)理(li)卻大致相(xiang)同。由于(yu)(yu)切(qie)(qie)(qie)(qie)(qie)割(ge)(ge)(ge)(ge)石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)是(shi)金(jin)(jin)(jin)剛(gang)(gang)石(shi)(shi)(shi)切(qie)(qie)(qie)(qie)(qie)割(ge)(ge)(ge)(ge)工(gong)(gong)(gong)(gong)(gong)(gong)具(ju)主(zhu)要(yao)的(de)(de)(de)用(yong)途,因此,深入(ru)研究石(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)鋸(ju)切(qie)(qie)(qie)(qie)(qie)機(ji)理(li)和金(jin)(jin)(jin)剛(gang)(gang)石(shi)(shi)(shi)切(qie)(qie)(qie)(qie)(qie)割(ge)(ge)(ge)(ge)工(gong)(gong)(gong)(gong)(gong)(gong)具(ju)的(de)(de)(de)磨(mo)(mo)(mo)(mo)損機(ji)理(li)對于(yu)(yu)金(jin)(jin)(jin)剛(gang)(gang)石(shi)(shi)(shi)切(qie)(qie)(qie)(qie)(qie)割(ge)(ge)(ge)(ge)工(gong)(gong)(gong)(gong)(gong)(gong)具(ju)的(de)(de)(de)合理(li)制(zhi)造與正確使用(yong)具(ju)有(you)重(zhong)要(yao)意義。

襄陽偉奇雕刻白(A級)石材服務商

辨識飾(shi)(shi)面(mian)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)質量加工好的(de)成(cheng)品飾(shi)(shi)面(mian)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai),其(qi)質量好壞不可以(yi)(yi)從(cong)以(yi)(yi)下四方(fang)面(mian)來(lai)鑒別;⑴觀,即(ji)肉眼觀察(cha)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)的(de)表面(mian)結(jie)(jie)構(gou)(gou)。一般(ban)說來(lai),均(jun)(jun)勻的(de)細料結(jie)(jie)構(gou)(gou)的(de)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)具有細膩(ni)的(de)質感,為石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)之佳品;粗粒(li)(li)及(ji)不等粒(li)(li)結(jie)(jie)構(gou)(gou)的(de)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)其(qi)外觀效果(guo)較差,重(zhong)慶石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)欄(lan)桿機械力學性能也(ye)不均(jun)(jun)勻,質量稍差。另外,天(tian)然石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)由于地質作用的(de)影(ying)響(xiang)常在其(qi)中產生一些(xie)細脈、微裂(lie)隙,石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)易沿這些(xie)部(bu)位發生破裂(lie),應(ying)注意剔除。至(zhi)于缺(que)棱(leng)少角更是影(ying)響(xiang)美觀,選擇(ze)時尤應(ying)注意。⑵量,即(ji)量石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)的(de)尺(chi)寸(cun)規格,重(zhong)慶石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)欄(lan)桿以(yi)(yi)免影(ying)響(xiang)拼接(jie),或(huo)(huo)造成(cheng)拼接(jie)后(hou)的(de)圖案、花紋、線條變形,影(ying)響(xiang)裝飾(shi)(shi)效果(guo)。⑶聽(ting),即(ji)聽(ting)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)的(de)敲(qiao)擊(ji)聲音。一般(ban)而(er)言,質量好的(de),內(nei)部(bu)致密均(jun)(jun)勻且無顯(xian)微裂(lie)隙的(de)石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai),其(qi)敲(qiao)擊(ji)聲清(qing)脆(cui)悅耳(er);相(xiang)反,若石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)內(nei)部(bu)存在顯(xian)微裂(lie)隙或(huo)(huo)細脈或(huo)(huo)因風(feng)化導致顆粒(li)(li)間(jian)接(jie)觸(chu)變松,則敲(qiao)擊(ji)聲粗啞。⑷試(shi),即(ji)用簡單的(de)試(shi)驗方(fang)法來(lai)檢(jian)驗石(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)質量好壞。

襄陽偉奇雕刻白(A級)石材服務商

跟著小(xiao)城(cheng)鎮特別是新(xin)鄉村(cun)建筑水(shui)(shui)平不斷前進(jin),締造的(de)(de)(de)投入也將(jiang)加大(da)。無疑(yi)石材商場的(de)(de)(de)潛力極端無窮,石材裝飾(shi)已變成鄉村(cun)家(jia)庭(ting)裝飾(shi)搶(qiang)手。據悉(xi),我國小(xiao)城(cheng)市民宅的(de)(de)(de)裝飾(shi)有一半以上選用天然石材裝飾(shi)。但就國內形(xing)勢來看,在出產技術落后(hou)的(de)(de)(de)情況下,公(gong)司(si)只(zhi)(zhi)能(neng)(neng)(neng)采用大(da)量(liang)的(de)(de)(de)賤賣勞動力來填補技能(neng)(neng)(neng)縫(feng)隙。這不只(zhi)(zhi)使公(gong)司(si)效益(yi)縮(suo)水(shui)(shui),還直(zhi)接引發了產品質量(liang)、產品維護養護等一系列問題。致(zhi)使了工(gong)作(zuo)展(zhan)開(kai)的(de)(de)(de)瓶(ping)頸(jing),給工(gong)作(zuo)、公(gong)司(si)的(de)(de)(de)展(zhan)開(kai)帶來了風險。面對其時的(de)(de)(de)各種情況,石材公(gong)司(si)如(ru)能(neng)(neng)(neng)努力前進(jin)出產技術,加強對新(xin)產品、新(xin)技術品的(de)(de)(de)開(kai)發運用,以立異為方向(xiang),重(zhong)慶石材加工(gong)活潑引導花費,悉(xi)數拓展(zhan)開(kai)發新(xin)產品,將(jiang)新(xin)技能(neng)(neng)(neng)、新(xin)技術運用到(dao)多(duo)個商場領域,前進(jin)產品附加值,無疑(yi)將(jiang)會贏得廣大(da)的(de)(de)(de)展(zhan)開(kai)商機。

襄陽偉奇雕刻白(A級)石材服務商

通常情況(kuang)下圓形的(de)(de)(de)刀具(ju)因為切開半(ban)徑比(bi)照小(xiao),所以重(zhong)(zhong)慶(qing)石(shi)(shi)材加(jia)工(gong)(gong)廠的(de)(de)(de)石(shi)(shi)材在受力的(de)(de)(de)進程(cheng)中比(bi)照安穩,一(yi)同切開進程(cheng)的(de)(de)(de)好(hao)壞直接決議著石(shi)(shi)材的(de)(de)(de)運(yun)用(yong)壽數。因此加(jia)工(gong)(gong)東西(xi)的(de)(de)(de)翻開將會(hui)不(bu)(bu)斷跋(ba)涉。同樣(yang)是(shi)修建板(ban)石(shi)(shi)類(lei),瓦(wa)板(ban)巖(yan)能夠(gou)做飾面板(ban)巖(yan),而飾面板(ban)巖(yan)不(bu)(bu)能做瓦(wa)板(ban)巖(yan),這(zhe)是(shi)啥理由呢?首要(yao)(yao)要(yao)(yao)知道優質的(de)(de)(de)板(ban)石(shi)(shi)有(you)(you)必(bi)要(yao)(yao)具(ju)有(you)(you)的(de)(de)(de)特征:劈分(fen)功用(yong)好(hao)、平(ping)整度(du)好(hao)、色差小(xiao)、黑(hei)度(du)高(gao)(其他色彩同理)、曲(qu)折強(qiang)度(du)高(gao)、含鈣鐵硫量低,燒失量低,耐酸堿功用(yong)好(hao),吸水率低,耐候(hou)性好(hao)。重(zhong)(zhong)慶(qing)石(shi)(shi)材加(jia)工(gong)(gong)廠的(de)(de)(de)青(qing)石(shi)(shi)板(ban)材不(bu)(bu)具(ju)有(you)(you)超(chao)卓(zhuo)的(de)(de)(de)劈分(fen)功用(yong),根柢沒有(you)(you)方法(fa)把石(shi)(shi)板(ban)瓦(wa)劈分(fen)到5~7mm的(de)(de)(de)規范厚度(du);沒有(you)(you)超(chao)卓(zhuo)的(de)(de)(de)曲(qu)折強(qiang)度(du),在這(zhe)一(yi)厚度(du)下就(jiu)(jiu)無法(fa)抵達蓋(gai)瓦(wa)的(de)(de)(de)運(yun)用(yong)需(xu)要(yao)(yao);平(ping)整度(du)差,根柢不(bu)(bu)能滿(man)意(yi)規整穩妥(tuo)的(de)(de)(de)掛瓦(wa)施(shi)工(gong)(gong)需(xu)要(yao)(yao);沒有(you)(you)超(chao)卓(zhuo)的(de)(de)(de)材料特征,就(jiu)(jiu)不(bu)(bu)能夠(gou)經久不(bu)(bu)褪色、不(bu)(bu)風化、不(bu)(bu)生(sheng)銹(xiu)而堅(jian)持100年以上的(de)(de)(de)運(yun)用(yong)壽數。

襄陽偉奇雕刻白(A級)石材服務商

在(zai)兩個相互垂直在(zai)內(nei)的(de)方向鋪兩條(tiao)干砂道路,讓他的(de)寬度要(yao)(yao)大(da)(da)于(yu)板寬的(de)寬度,厚度要(yao)(yao)大(da)(da)于(yu)3cm。結合施工大(da)(da)樣(yang)圖(tu)及景觀(guan)鋪裝(zhuang)(zhuang)分區實際尺寸,把鋪裝(zhuang)(zhuang)板塊排好(hao),重慶(qing)青(qing)石(shi)(shi)(shi)(shi)(shi)板材(cai)(cai)(cai)(cai)(cai)以(yi)便檢查板塊之間的(de)縫隙,核對板塊與墻面、柱、洞(dong)口、樹池、側緣石(shi)(shi)(shi)(shi)(shi)、平緣石(shi)(shi)(shi)(shi)(shi)邊等(deng)部位(wei)的(de)相對位(wei)置。裝(zhuang)(zhuang)飾(shi)石(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)具備(bei)的(de)基(ji)本條(tiao)件具備(bei)裝(zhuang)(zhuang)飾(shi)石(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)必(bi)須符合3條(tiao)基(ji)本條(tiao)件。①有外(wai)在(zai)美(mei)學裝(zhuang)(zhuang)飾(shi)性(xing)。這(zhe)是從視覺和人的(de)欣賞、歷史文(wen)化角度認(ren)識(shi)的(de),重慶(qing)青(qing)石(shi)(shi)(shi)(shi)(shi)板材(cai)(cai)(cai)(cai)(cai)各(ge)個民族、地域、習慣、喜(xi)好(hao)不同(tong),使用(yong)的(de)裝(zhuang)(zhuang)飾(shi)石(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)色彩、種類也不同(tong),重慶(qing)青(qing)石(shi)(shi)(shi)(shi)(shi)板材(cai)(cai)(cai)(cai)(cai)但不管怎樣(yang)只要(yao)(yao)是作(zuo)為裝(zhuang)(zhuang)飾(shi)裝(zhuang)(zhuang)修使用(yong)就必(bi)須要(yao)(yao)考(kao)慮石(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)的(de)外(wai)在(zai)美(mei)觀(guan)。這(zhe)是設(she)計、選擇裝(zhuang)(zhuang)飾(shi)石(shi)(shi)(shi)(shi)(shi)材(cai)(cai)(cai)(cai)(cai)的(de)首要(yao)(yao)因素。

襄陽偉奇雕刻白(A級)石材服務商

襄陽偉奇雕刻白(A級)石材服務商按裝飾(shi)效果(guo)分(fen)(fen)(fen)按照裝飾(shi)效果(guo),石(shi)(shi)材(cai)(cai)拼(pin)花(hua)(hua)設(she)(she)(she)計(ji)(ji),可大(da)(da)(da)(da)致分(fen)(fen)(fen)為兩類(lei)(lei):拼(pin)花(hua)(hua)類(lei)(lei)指模仿花(hua)(hua)朵、復雜(za)的(de)(de)(de)(de)幾(ji)(ji)何圖(tu)(tu)形、logo、人(ren)物形象、藝(yi)術品等(deng)類(lei)(lei)型(xing)的(de)(de)(de)(de)設(she)(she)(she)計(ji)(ji)。特點是(shi)設(she)(she)(she)計(ji)(ji)復雜(za),線(xian)條多(duo)樣(yang),結(jie)構(gou)精巧(qiao)。裝飾(shi)效果(guo)精致、華麗。但對石(shi)(shi)材(cai)(cai)護理(li)工(gong)(gong)(gong)程而言,拼(pin)花(hua)(hua)類(lei)(lei)的(de)(de)(de)(de)處理(li)難度,也是(shi)相對較高的(de)(de)(de)(de)。拼(pin)圖(tu)(tu)類(lei)(lei)設(she)(she)(she)計(ji)(ji)成固定(ding)的(de)(de)(de)(de)幾(ji)(ji)何圖(tu)(tu)形的(de)(de)(de)(de)一類(lei)(lei)石(shi)(shi)材(cai)(cai)拼(pin)花(hua)(hua)設(she)(she)(she)計(ji)(ji)。如果(guo)說(shuo)和(he)上(shang)面的(de)(de)(de)(de)有什么不同(tong),那就是(shi)拼(pin)圖(tu)(tu)設(she)(she)(she)計(ji)(ji)的(de)(de)(de)(de)結(jie)構(gou)和(he)圖(tu)(tu)案(an)更(geng)簡單一些。按大(da)(da)(da)(da)小來(lai)分(fen)(fen)(fen)超(chao)大(da)(da)(da)(da)型(xing)拼(pin)花(hua)(hua)有些拼(pin)花(hua)(hua)設(she)(she)(she)計(ji)(ji)會達到幾(ji)(ji)百乃至幾(ji)(ji)千平米。這種超(chao)大(da)(da)(da)(da)型(xing)拼(pin)花(hua)(hua),是(shi)在(zai)設(she)(she)(she)計(ji)(ji)時按照圖(tu)(tu)案(an)等(deng)比例放大(da)(da)(da)(da),經(jing)加工(gong)(gong)(gong)和(he)鋪裝而成。大(da)(da)(da)(da)型(xing)拼(pin)花(hua)(hua)一般(ban)直徑超(chao)過1.5米的(de)(de)(de)(de)拼(pin)花(hua)(hua),工(gong)(gong)(gong)廠(chang)生產時,會將設(she)(she)(she)計(ji)(ji)好的(de)(de)(de)(de)拼(pin)花(hua)(hua)板材(cai)(cai),進行分(fen)(fen)(fen)塊切割,到現場后再進行組(zu)裝。一般(ban)拼(pin)花(hua)(hua)直徑在(zai)1.5米以下的(de)(de)(de)(de)拼(pin)花(hua)(hua),工(gong)(gong)(gong)廠(chang)在(zai)生產時,一般(ban)都經(jing)過了整(zheng)體補膠(jiao)處理(li)。上(shang)述分(fen)(fen)(fen)類(lei)(lei),更(geng)多(duo)是(shi)從石(shi)(shi)材(cai)(cai)護理(li)的(de)(de)(de)(de)角度出發的(de)(de)(de)(de)。因為石(shi)(shi)材(cai)(cai)拼(pin)花(hua)(hua)工(gong)(gong)(gong)程,與一般(ban)工(gong)(gong)(gong)程,是(shi)有很大(da)(da)(da)(da)區(qu)別(bie)的(de)(de)(de)(de)。如在(zai)無(wu)縫(feng)化處理(li)環(huan)節,石(shi)(shi)材(cai)(cai)拼(pin)花(hua)(hua)的(de)(de)(de)(de)補膠(jiao)處理(li),和(he)一般(ban)工(gong)(gong)(gong)程在(zai)操作工(gong)(gong)(gong)藝(yi)和(he)注意事項上(shang)有著(zhu)本質區(qu)別(bie)。石(shi)(shi)材(cai)(cai)拼(pin)花(hua)(hua)的(de)(de)(de)(de)補膠(jiao)石(shi)(shi)材(cai)(cai)拼(pin)花(hua)(hua)的(de)(de)(de)(de)處理(li)工(gong)(gong)(gong)藝(yi),跟普通石(shi)(shi)材(cai)(cai)護理(li)工(gong)(gong)(gong)程相比,主要區(qu)別(bie)是(shi)在(zai)無(wu)縫(feng)化處理(li),也即(ji)補膠(jiao)環(huan)節。其他的(de)(de)(de)(de)環(huan)節差(cha)別(bie)倒(dao)不是(shi)很大(da)(da)(da)(da)。

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