噪(zao)(zao)(zao)音(yin)(yin)所(suo)產(chan)(chan)(chan)生(sheng)的(de)(de)(de)(de)危害是(shi)比(bi)較(jiao)大(da)的(de)(de)(de)(de)，尤其(qi)是(shi)表(biao)現在如下(xia)幾(ji)個(ge)方面：1、長期在強(qiang)烈的(de)(de)(de)(de)噪(zao)(zao)(zao)音(yin)(yin)環境中(zhong)(zhong)工作，可以使(shi)人(ren)產(chan)(chan)(chan)生(sheng)噪(zao)(zao)(zao)聲(sheng)(sheng)性(xing)耳(er)聾。2、影響人(ren)們的(de)(de)(de)(de)正常工作、學(xue)習及(ji)日常生(sheng)活。那么石材(cai)加工過程中(zhong)(zhong)噪(zao)(zao)(zao)音(yin)(yin)是(shi)怎樣產(chan)(chan)(chan)生(sheng)的(de)(de)(de)(de)呢？它主要來自齒(chi)尖(jian)噪(zao)(zao)(zao)聲(sheng)(sheng)，鋸(ju)(ju)(ju)(ju)(ju)(ju)片的(de)(de)(de)(de)振動及(ji)物料摩擦聲(sheng)(sheng)。齒(chi)尖(jian)噪(zao)(zao)(zao)聲(sheng)(sheng)：是(shi)當鋸(ju)(ju)(ju)(ju)(ju)(ju)片高速(su)(su)(su)運轉(zhuan)(zhuan)(zhuan)時，鋸(ju)(ju)(ju)(ju)(ju)(ju)片的(de)(de)(de)(de)鋸(ju)(ju)(ju)(ju)(ju)(ju)齒(chi)與(yu)(yu)(yu)周圍(wei)的(de)(de)(de)(de)空氣(qi)(qi)相互作用，引(yin)起空氣(qi)(qi)的(de)(de)(de)(de)壓力(li)(li)(li)脈(mo)動而產(chan)(chan)(chan)生(sheng)的(de)(de)(de)(de)噪(zao)(zao)(zao)聲(sheng)(sheng)。齒(chi)尖(jian)噪(zao)(zao)(zao)聲(sheng)(sheng)的(de)(de)(de)(de)聲(sheng)(sheng)功率(lv)(lv)(lv)與(yu)(yu)(yu)鋸(ju)(ju)(ju)(ju)(ju)(ju)片的(de)(de)(de)(de)直徑、鋸(ju)(ju)(ju)(ju)(ju)(ju)片的(de)(de)(de)(de)線(xian)速(su)(su)(su)度的(de)(de)(de)(de)三(san)次方成(cheng)正比(bi)，當轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)越低時，與(yu)(yu)(yu)其(qi)線(xian)速(su)(su)(su)度三(san)次方成(cheng)正比(bi)，齒(chi)尖(jian)噪(zao)(zao)(zao)聲(sheng)(sheng)的(de)(de)(de)(de)頻(pin)(pin)(pin)率(lv)(lv)(lv)可由(you)下(xia)式計算：式中(zhong)(zhong)：fi—齒(chi)尖(jian)噪(zao)(zao)(zao)聲(sheng)(sheng)頻(pin)(pin)(pin)率(lv)(lv)(lv)，即(ji)鋸(ju)(ju)(ju)(ju)(ju)(ju)齒(chi)每(mei)秒打空氣(qi)(qi)質點的(de)(de)(de)(de)次數(shu)(shu)，（HZ）z—鋸(ju)(ju)(ju)(ju)(ju)(ju)片的(de)(de)(de)(de)齒(chi)數(shu)(shu)（個(ge)）n—鋸(ju)(ju)(ju)(ju)(ju)(ju)片的(de)(de)(de)(de)軸(zhou)的(de)(de)(de)(de)轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)（r/min）i—諧波(bo)序(xu)號(hao)i=1、2、3……鋸(ju)(ju)(ju)(ju)(ju)(ju)片旋轉(zhuan)(zhuan)(zhuan)時，每(mei)個(ge)齒(chi)尖(jian)產(chan)(chan)(chan)生(sheng)單極輻射流，并周期地通過工作臺的(de)(de)(de)(de)鋸(ju)(ju)(ju)(ju)(ju)(ju)縫向外排(pai)(pai)出(chu)，由(you)于氣(qi)(qi)流壓力(li)(li)(li)發生(sheng)激烈變化，隨(sui)之(zhi)產(chan)(chan)(chan)生(sheng)排(pai)(pai)氣(qi)(qi)噪(zao)(zao)(zao)聲(sheng)(sheng)，排(pai)(pai)氣(qi)(qi)噪(zao)(zao)(zao)聲(sheng)(sheng)的(de)(de)(de)(de)升功率(lv)(lv)(lv)也隨(sui)著(zhu)鋸(ju)(ju)(ju)(ju)(ju)(ju)片線(xian)速(su)(su)(su)度增(zeng)(zeng)大(da)而急劇增(zeng)(zeng)加，它與(yu)(yu)(yu)氣(qi)(qi)流速(su)(su)(su)度的(de)(de)(de)(de)6次方成(cheng)正比(bi)，在線(xian)速(su)(su)(su)度較(jiao)小時，與(yu)(yu)(yu)其(qi)5次方成(cheng)正比(bi)，則(ze)排(pai)(pai)氣(qi)(qi)噪(zao)(zao)(zao)聲(sheng)(sheng)頻(pin)(pin)(pin)率(lv)(lv)(lv)為(wei)：式中(zhong)(zhong)：fi—排(pai)(pai)氣(qi)(qi)噪(zao)(zao)(zao)聲(sheng)(sheng)頻(pin)(pin)(pin)率(lv)(lv)(lv)，（HZ）z—鋸(ju)(ju)(ju)(ju)(ju)(ju)片的(de)(de)(de)(de)齒(chi)數(shu)(shu)（個(ge)）n—鋸(ju)(ju)(ju)(ju)(ju)(ju)片軸(zhou)的(de)(de)(de)(de)轉(zhuan)(zhuan)(zhuan)速(su)(su)(su)（r/min）i—諧波(bo)序(xu)號(hao)i=1、2、3……在鋸(ju)(ju)(ju)(ju)(ju)(ju)片高速(su)(su)(su)旋轉(zhuan)(zhuan)(zhuan)時，每(mei)當渦流分(fen)離的(de)(de)(de)(de)頻(pin)(pin)(pin)率(lv)(lv)(lv)與(yu)(yu)(yu)鋸(ju)(ju)(ju)(ju)(ju)(ju)片的(de)(de)(de)(de)固有頻(pin)(pin)(pin)率(lv)(lv)(lv)相近時，就發生(sheng)共振，便(bian)發出(chu)“尖(jian)叫聲(sheng)(sheng)”，其(qi)頻(pin)(pin)(pin)率(lv)(lv)(lv)為(wei)：f=z fr式中(zhong)(zhong)：z—鋸(ju)(ju)(ju)(ju)(ju)(ju)片的(de)(de)(de)(de)齒(chi)數(shu)(shu)（個(ge)）fr—軸(zhou)回轉(zhuan)(zhuan)(zhuan)頻(pin)(pin)(pin)率(lv)(lv)(lv)（HZ）鋸(ju)(ju)(ju)(ju)(ju)(ju)片屬于薄壁件，其(qi)剛性(xing)一般(ban)較(jiao)差，在外力(li)(li)(li)的(de)(de)(de)(de)作用下(xia)很容易(yi)產(chan)(chan)(chan)生(sheng)振動，由(you)于振動便(bian)容易(yi)產(chan)(chan)(chan)生(sheng)物料的(de)(de)(de)(de)摩擦，因此該(gai)類的(de)(de)(de)(de)噪(zao)(zao)(zao)音(yin)(yin)也就隨(sui)之(zhi)產(chan)(chan)(chan)生(sheng)。

資陽裝修石材公司擁(yong)有豐富的(de)(de)(de)經驗(yan)，才可以(yi)系(xi)統(tong)的(de)(de)(de)解決全(quan)(quan)方(fang)位的(de)(de)(de)石(shi)(shi)(shi)(shi)材(cai)(cai)問題(ti)(ti)。希望這些分(fen)(fen)享，能對大(da)家有所(suo)(suo)幫助。墻(qiang)(qiang)面(mian)(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)施(shi)(shi)工(gong)(gong)工(gong)(gong)藝(yi)(yi)及(ji)細部(bu)(bu)構造3大(da)要(yao)(yao)點墻(qiang)(qiang)面(mian)(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)在(zai)施(shi)(shi)工(gong)(gong)過(guo)程中，往往會由(you)于沒有全(quan)(quan)部(bu)(bu)貼合(he)(he)而出現石(shi)(shi)(shi)(shi)材(cai)(cai)裂(lie)開甚至掉脫的(de)(de)(de)問題(ti)(ti)，這樣極(ji)大(da)增加了(le)建筑的(de)(de)(de)安(an)全(quan)(quan)隱(yin)患。因此，墻(qiang)(qiang)面(mian)(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)的(de)(de)(de)施(shi)(shi)工(gong)(gong)工(gong)(gong)藝(yi)(yi)顯得十分(fen)(fen)重要(yao)(yao)。一、墻(qiang)(qiang)面(mian)(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)施(shi)(shi)工(gong)(gong)要(yao)(yao)點1、采用(yong)(yong)(yong)比(bi)色(se)法對石(shi)(shi)(shi)(shi)材(cai)(cai)的(de)(de)(de)顏色(se)進行(xing)挑選分(fen)(fen)類(lei)，安(an)裝(zhuang)在(zai)同一面(mian)(mian)(mian)的(de)(de)(de)石(shi)(shi)(shi)(shi)材(cai)(cai)顏色(se)一致。2、施(shi)(shi)工(gong)(gong)前認真按照圖紙(zhi)尺寸，核(he)對結構施(shi)(shi)工(gong)(gong)的(de)(de)(de)實際尺寸，以(yi)及(ji)分(fen)(fen)段分(fen)(fen)塊，單線和拉線要(yao)(yao)直，吊(diao)線校(xiao)正要(yao)(yao)勤快。3、外飾面(mian)(mian)(mian)施(shi)(shi)工(gong)(gong)完成(cheng)后，對于易破(po)損(sun)部(bu)(bu)分(fen)(fen)的(de)(de)(de)棱(leng)角處要(yao)(yao)釘(ding)護角保護，以(yi)免其(qi)他工(gong)(gong)種(zhong)操作時碰壞石(shi)(shi)(shi)(shi)材(cai)(cai)。二(er)、墻(qiang)(qiang)面(mian)(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)施(shi)(shi)工(gong)(gong)工(gong)(gong)藝(yi)(yi)要(yao)(yao)點1、灌(guan)漿(jiang)法施(shi)(shi)工(gong)(gong)工(gong)(gong)藝(yi)(yi)（1）墻(qiang)(qiang)面(mian)(mian)(mian)石(shi)(shi)(shi)(shi)材(cai)(cai)采用(yong)(yong)(yong)濕掛灌(guan)漿(jiang)工(gong)(gong)藝(yi)(yi)，采用(yong)(yong)(yong)銅絲連接。分(fen)(fen)次灌(guan)漿(jiang)，一次不(bu)得超過(guo)石(shi)(shi)(shi)(shi)板高(gao)度的(de)(de)(de)三(san)分(fen)(fen)之一，待砂(sha)漿(jiang)初凝后進行(xing)二(er)次灌(guan)漿(jiang)，高(gao)度為(wei)石(shi)(shi)(shi)(shi)板的(de)(de)(de)二(er)分(fen)(fen)之一，三(san)層灌(guan)漿(jiang)至低于石(shi)(shi)(shi)(shi)板上口(kou)5厘米處為(wei)止。（2）深色(se)石(shi)(shi)(shi)(shi)材(cai)(cai)采用(yong)(yong)(yong)32.5Mpa普通硅酸鹽水泥(ni)混(hun)合(he)(he)中砂(sha)或粗砂(sha)，（含泥(ni)量(liang)不(bu)大(da)于3%）1:3配比(bi)；淺色(se)系(xi)列石(shi)(shi)(shi)(shi)材(cai)(cai)采用(yong)(yong)(yong)32.5Mpa白水泥(ni)砂(sha)漿(jiang)摻白石(shi)(shi)(shi)(shi)屑1:3配比(bi)。2、干掛法施(shi)(shi)工(gong)(gong)工(gong)(gong)藝(yi)(yi)（1）所(suo)(suo)有型(xing)鋼規格符合(he)(he)國家標準，熱鍍鋅處理，焊接部(bu)(bu)位作防銹處理。

毛(mao)邊石(shi)(shi)(shi)(shi)材(cai)(cai)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)技能(neng)(neng)毛(mao)邊重慶石(shi)(shi)(shi)(shi)材(cai)(cai)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)技能(neng)(neng)是根據計劃或(huo)用(yong)戶(hu)需(xu)要(yao)(yao)，在(zai)已開掘或(huo)切(qie)開的(de)(de)(de)(de)塊石(shi)(shi)(shi)(shi)、條石(shi)(shi)(shi)(shi)、石(shi)(shi)(shi)(shi)板的(de)(de)(de)(de)外(wai)表進行(xing)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)的(de)(de)(de)(de)。加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)品(pin)種有(you)粗(cu)(cu)鑿光(guang)(guang)(guang)(一(yi)步做鑿)、細(xi)(xi)鑿光(guang)(guang)(guang)(二(er)步做鑿，或(huo)稱點光(guang)(guang)(guang)、豆光(guang)(guang)(guang)、瞪砂地)、一(yi)斧(fu)(fu)光(guang)(guang)(guang)(一(yi)遍(bian)(bian)剁(duo)(duo)斧(fu)(fu))、二(er)斧(fu)(fu)光(guang)(guang)(guang)(二(er)遍(bian)(bian)剁(duo)(duo)斧(fu)(fu))、三斧(fu)(fu)光(guang)(guang)(guang)(三遍(bian)(bian)剁(duo)(duo)斧(fu)(fu))、機刨光(guang)(guang)(guang)、亞光(guang)(guang)(guang)(粗(cu)(cu)磨(mo)光(guang)(guang)(guang))、細(xi)(xi)磨(mo)光(guang)(guang)(guang)等幾種。傳統的(de)(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)是在(zai)毛(mao)坯(pi)(pi)的(de)(de)(de)(de)塊石(shi)(shi)(shi)(shi)(荒料(liao))、條石(shi)(shi)(shi)(shi)、石(shi)(shi)(shi)(shi)板的(de)(de)(de)(de)基礎上進行(xing)分品(pin)種、分層次(ci)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)，根據用(yong)戶(hu)需(xu)要(yao)(yao)有(you)粗(cu)(cu)鑿光(guang)(guang)(guang)至(zhi)細(xi)(xi)磨(mo)光(guang)(guang)(guang)逐遍(bian)(bian)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)。例如，用(yong)戶(hu)需(xu)要(yao)(yao)二(er)斧(fu)(fu)光(guang)(guang)(guang)，須經粗(cu)(cu)鑿、細(xi)(xi)鑿、一(yi)遍(bian)(bian)斧(fu)(fu)、二(er)遍(bian)(bian)斧(fu)(fu)才行(xing)。根據用(yong)戶(hu)的(de)(de)(de)(de)需(xu)要(yao)(yao)，重慶石(shi)(shi)(shi)(shi)材(cai)(cai)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)主(zhu)要(yao)(yao)由(you)以(yi)下幾種層次(ci)的(de)(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)技能(neng)(neng):(1)毛(mao)坯(pi)(pi)的(de)(de)(de)(de)塊石(shi)(shi)(shi)(shi)、條石(shi)(shi)(shi)(shi)、石(shi)(shi)(shi)(shi)板筑方的(de)(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)技能(neng)(neng)。(2)墻面(mian)線槽的(de)(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)技能(neng)(neng)。(3)線(腳)條的(de)(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)技能(neng)(neng)。(4)圓形柱或(huo)柱座(zuo)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)技能(neng)(neng)(不(bu)管全(quan)體或(huo)拼裝)。(5)建筑飾(shi)面(mian)的(de)(de)(de)(de)花(hua)飾(shi)、雕(diao)琢(即(ji)浮(fu)雕(diao)、圓雕(diao))。(6)蘑菇石(shi)(shi)(shi)(shi)與天然(ran)面(mian)(劈毛(mao)石(shi)(shi)(shi)(shi))的(de)(de)(de)(de)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)技能(neng)(neng)(用(yong)塊石(shi)(shi)(shi)(shi)、條石(shi)(shi)(shi)(shi)制(zhi)作(zuo)(zuo))。重慶石(shi)(shi)(shi)(shi)材(cai)(cai)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)為你解析傳統的(de)(de)(de)(de)石(shi)(shi)(shi)(shi)材(cai)(cai)由(you)于(yu)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)設(she)備和加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)技術(shu)捆綁，以(yi)及(ji)要(yao)(yao)作(zuo)(zuo)為承重的(de)(de)(de)(de)構(gou)造(zao)構(gou)件，所以(yi)加(jia)(jia)工(gong)(gong)(gong)(gong)(gong)(gong)出來的(de)(de)(de)(de)石(shi)(shi)(shi)(shi)材(cai)(cai)制(zhi)品(pin)一(yi)般比照厚重、粗(cu)(cu)糙(cao)，但這(zhe)些石(shi)(shi)(shi)(shi)材(cai)(cai)制(zhi)品(pin)難以(yi)日益(yi)翻開和精雕(diao)細(xi)(xi)鏤的(de)(de)(de)(de)需(xu)求(qiu)。

石材(cai)墻(qiang)面(mian)有(you)橫縫時（如V字(zi)縫，凹(ao)槽(cao)）時，陰角收口(kou)均需(xu)45度（角度稍小于(yu)45度，以(yi)利(li)于(yu)拼接(jie)）拼接(jie)對角處(chu)(chu)理(li)，應在工廠內加工完成。4、石材(cai)檢修門：（1）石材(cai)暗門需(xu)采用熱鍍(du)鋅角剛，角鋼大(da)小及滾珠軸承大(da)小根(gen)據門體的自重選定(ding)(ding)(ding)，焊接(jie)部位作防(fang)銹(xiu)(xiu)處(chu)(chu)理(li)。（2）石材(cai)干(gan)掛或安裝(zhuang)(zhuang)，門邊、框邊切(qie)割面(mian)需(xu)拋光處(chu)(chu)理(li)，鋼架面(mian)采用防(fang)潮(chao)板(ban)包(bao)封。（3）門與框之間安裝(zhuang)(zhuang)限(xian)位鏈。5、鋼架臺(tai)盆(pen)安裝(zhuang)(zhuang)注意(yi)防(fang)銹(xiu)(xiu)等的處(chu)(chu)理(li)：（1）臺(tai)盆(pen)鐵甲(jia)須采用國(guo)標(biao)鍍(du)鋅角鋼，焊接(jie)處(chu)(chu)做防(fang)銹(xiu)(xiu)處(chu)(chu)理(li)。（2）臺(tai)盆(pen)固(gu)定(ding)(ding)(ding)于(yu)固(gu)定(ding)(ding)(ding)構(gou)件(jian)上，固(gu)定(ding)(ding)(ding)構(gou)建與石材(cai)墊(dian)塊用不銹(xiu)(xiu)鋼或鍍(du)鋅螺栓固(gu)定(ding)(ding)(ding)，墊(dian)塊背面(mian)及臺(tai)面(mian)粘結部位需(xu)經(jing)打毛處(chu)(chu)理(li)用大(da)理(li)石膠粘接(jie)固(gu)定(ding)(ding)(ding)，臺(tai)盆(pen)與固(gu)定(ding)(ding)(ding)構(gou)件(jian)連接(jie)處(chu)(chu)需(xu)用橡皮(pi)墊(dian)塊，臺(tai)盆(pen)與臺(tai)面(mian)板(ban)下(xia)沿口(kou)用耐候膠密(mi)封。

石材(cai)(cai)(cai)(cai)鋪裝之(zhi)前首要清(qing)潔石材(cai)(cai)(cai)(cai)表面(mian)，使(shi)其清(qing)潔單調(diao)再用(yong)(yong)(yong)板刷(shua)(shua)（毛(mao)刷(shua)(shua)）或滾(gun)筒的方法對(dui)石材(cai)(cai)(cai)(cai)的反、正面(mian)及(ji)四立面(mian)刷(shua)(shua)兩遍水溶性(xing)防滲劑(ji)。為獲(huo)得佳效果，應使(shi)一層徹底進(jin)(jin)入(ru)基材(cai)(cai)(cai)(cai)后(hou)（1-2小時(shi)(shi)）再刷(shua)(shua)二遍。做完防滲處置起碼保護(hu)24小時(shi)(shi)后(hou)才(cai)華鋪裝。5、石材(cai)(cai)(cai)(cai)鋪裝時(shi)(shi)應留縫(feng)(feng)鋪貼（竹編馬賽克等在(zai)外(wai)）。6、為加(jia)強(qiang)黏貼的健壯性(xing)及(ji)抗(kang)污性(xing)，建議運(yun)用(yong)(yong)(yong)粘結劑(ji)鋪貼。7、淡(dan)色石材(cai)(cai)(cai)(cai)請運(yun)用(yong)(yong)(yong)淡(dan)色填(tian)(tian)(tian)(tian)逢(feng)(feng)劑(ji)。8、板巖類石材(cai)(cai)(cai)(cai)表面(mian)是運(yun)用(yong)(yong)(yong)分外(wai)剝離技能制(zhi)成，所以每片之(zhi)間(jian)存在(zai)薄厚不均(jun)表象(xiang)。因其表面(mian)較粗(cu)糙，填(tian)(tian)(tian)(tian)逢(feng)(feng)之(zhi)間(jian)請用(yong)(yong)(yong)軟布在(zai)表面(mian)抹擦(ca)(ca)少量(liang)食用(yong)(yong)(yong)油再填(tian)(tian)(tian)(tian)逢(feng)(feng)，以便于(yu)收(shou)拾填(tian)(tian)(tian)(tian)逢(feng)(feng)劑(ji)。注：填(tian)(tian)(tian)(tian)逢(feng)(feng)時(shi)(shi)要邊填(tian)(tian)(tian)(tian)邊用(yong)(yong)(yong)濕(shi)毛(mao)巾擦(ca)(ca)，不宜大面(mian)積鋪裝后(hou)再擦(ca)(ca)。9、砂巖產品表面(mian)沙孔較多，填(tian)(tian)(tian)(tian)縫(feng)(feng)之(zhi)前運(yun)用(yong)(yong)(yong)寬膠(jiao)帶對(dui)穩中有降縫(feng)(feng)和周圍進(jin)(jin)行貼蓋，然后(hou)把縫(feng)(feng)隙處的膠(jiao)帶割開后(hou)再填(tian)(tian)(tian)(tian)縫(feng)(feng)，避免填(tian)(tian)(tian)(tian)縫(feng)(feng)劑(ji)黏于(yu)石材(cai)(cai)(cai)(cai)表面(mian)不宜收(shou)拾。