使(shi)用(yong)單(dan)位或經(jing)(jing)(jing)銷商(shang)在(zai)日常采(cai)購(gou)(gou)中(zhong)使(shi)用(yong)搜索(suo)(suo)引擎搜索(suo)(suo)生(sheng)產(chan)(chan)(chan)廠(chang)商(shang)并購(gou)(gou)買產(chan)(chan)(chan)品(pin)已經(jing)(jing)(jing)成(cheng)為很(hen)多企(qi)(qi)(qi)(qi)業(ye)和(he)經(jing)(jing)(jing)銷商(shang)的(de)主要(yao)采(cai)購(gou)(gou)手(shou)段。根據我們從事網絡營銷的(de)經(jing)(jing)(jing)歷，總結出以下幾(ji)點注(zhu)意事項，希望能對采(cai)購(gou)(gou)的(de)企(qi)(qi)(qi)(qi)業(ye)起到一些幫助(zhu)作用(yong)。1、采(cai)購(gou)(gou)的(de)產(chan)(chan)(chan)品(pin)型號規格、質量(liang)標準、技術參數應與采(cai)購(gou)(gou)計劃(hua)相符。2、采(cai)購(gou)(gou)產(chan)(chan)(chan)品(pin)時，就是通過搜索(suo)(suo)引擎搜索(suo)(suo)自(zi)己需求的(de)產(chan)(chan)(chan)品(pin)，找出生(sheng)產(chan)(chan)(chan)和(he)銷售(shou)該(gai)(gai)(gai)產(chan)(chan)(chan)品(pin)的(de)企(qi)(qi)(qi)(qi)業(ye)，然(ran)后查看該(gai)(gai)(gai)生(sheng)產(chan)(chan)(chan)企(qi)(qi)(qi)(qi)業(ye)網站(zhan)是否經(jing)(jing)(jing)過其所在(zai)省份工信廳(ting)備案，并登錄查驗。3、查看該(gai)(gai)(gai)生(sheng)產(chan)(chan)(chan)企(qi)(qi)(qi)(qi)業(ye)網站(zhan)欄(lan)目(mu)配置、欄(lan)目(mu)內容是否足夠(gou)專(zhuan)業(ye)，如大量(liang)出現與采(cai)購(gou)(gou)產(chan)(chan)(chan)品(pin)無(wu)關、雜亂無(wu)章的(de)，聯系地(di)址標明xxx工業(ye)區、示范(fan)園(yuan)而沒有(you)路牌號的(de)，只(zhi)有(you)手(shou)機(ji)號碼而沒有(you)固定(ding)(ding)電話、傳真(zhen)地(di)的(de)，足可(ke)認(ren)定(ding)(ding)該(gai)(gai)(gai)生(sheng)產(chan)(chan)(chan)企(qi)(qi)(qi)(qi)業(ye)為非正(zheng)規的(de)家庭作坊，不宜作為采(cai)購(gou)(gou)對象。

在(zai)工程(cheng)爆(bao)(bao)(bao)破中，常用(yong)的(de)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)方法(fa)(fa)(fa)有：電(dian)(dian)(dian)(dian)(dian)力起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)法(fa)(fa)(fa)、導火索(suo)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)法(fa)(fa)(fa)、導爆(bao)(bao)(bao)索(suo)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)法(fa)(fa)(fa)、導爆(bao)(bao)(bao)管起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)法(fa)(fa)(fa)。電(dian)(dian)(dian)(dian)(dian)力起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)法(fa)(fa)(fa)是利用(yong)電(dian)(dian)(dian)(dian)(dian)能(neng)(neng)使(shi)雷(lei)(lei)管爆(bao)(bao)(bao)炸(zha)，進(jin)而(er)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)炸(zha)藥的(de)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)芳法(fa)(fa)(fa)。它所(suo)需的(de)器(qi)材有：電(dian)(dian)(dian)(dian)(dian)雷(lei)(lei)管、導線和起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)電(dian)(dian)(dian)(dian)(dian)源。電(dian)(dian)(dian)(dian)(dian)爆(bao)(bao)(bao)網路(lu)的(de)連(lian)接形式，要根(gen)據爆(bao)(bao)(bao)破方法(fa)(fa)(fa)、爆(bao)(bao)(bao)破規(gui)模、工程(cheng)的(de)重要性、所(suo)選(xuan)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)電(dian)(dian)(dian)(dian)(dian)源及其(qi)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)能(neng)(neng)力等(deng)進(jin)行選(xuan)擇(ze)，基本連(lian)接方式有：串聯、并聯、串并聯和并串聯等(deng)。電(dian)(dian)(dian)(dian)(dian)力起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)法(fa)(fa)(fa)具有較安全、可靠(kao)、準確、高效(xiao)等(deng)優點，在(zai)國內外仍占有較大比重。在(zai)大、中型爆(bao)(bao)(bao)破中，主要仍是用(yong)電(dian)(dian)(dian)(dian)(dian)力起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)。特(te)別是在(zai)有瓦斯、礦塵(chen)爆(bao)(bao)(bao)炸(zha)的(de)環境(jing)中，電(dian)(dian)(dian)(dian)(dian)力起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)是主要的(de)起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)方法(fa)(fa)(fa)。但(dan)電(dian)(dian)(dian)(dian)(dian)力起(qi)(qi)(qi)(qi)爆(bao)(bao)(bao)容易受各種(zhong)電(dian)(dian)(dian)(dian)(dian)信(xin)號的(de)干擾而(er)發(fa)生早(zao)爆(bao)(bao)(bao)，因此(ci)在(zai)有雜(za)散電(dian)(dian)(dian)(dian)(dian)、靜電(dian)(dian)(dian)(dian)(dian)、雷(lei)(lei)電(dian)(dian)(dian)(dian)(dian)、射頻電(dian)(dian)(dian)(dian)(dian)、高壓感應電(dian)(dian)(dian)(dian)(dian)的(de)環境(jing)中，不能(neng)(neng)使(shi)用(yong)普通電(dian)(dian)(dian)(dian)(dian)雷(lei)(lei)管。

預(yu)裂(lie)與(yu)光(guang)(guang)面(mian)(mian)(mian)爆(bao)(bao)(bao)(bao)破(po)(po)技術的歷(li)史與(yu)現狀：預(yu)裂(lie)爆(bao)(bao)(bao)(bao)破(po)(po)是沿(yan)設(she)計開(kai)挖邊(bian)(bian)界布(bu)(bu)置密(mi)集炮孔(kong)，采(cai)取不耦(ou)合裝(zhuang)(zhuang)(zhuang)藥(yao)或裝(zhuang)(zhuang)(zhuang)填(tian)低(di)(di)威力炸藥(yao)，在(zai)主(zhu)爆(bao)(bao)(bao)(bao)區(qu)(qu)之(zhi)前(qian)起爆(bao)(bao)(bao)(bao)，從而在(zai)爆(bao)(bao)(bao)(bao)區(qu)(qu)與(yu)保留(liu)區(qu)(qu)之(zhi)間形成預(yu)裂(lie)縫(feng)，以(yi)減弱主(zhu)爆(bao)(bao)(bao)(bao)破(po)(po)對(dui)保留(liu)巖體的破(po)(po)壞并形成平(ping)整輪廓面(mian)(mian)(mian)的爆(bao)(bao)(bao)(bao)破(po)(po)作業。光(guang)(guang)面(mian)(mian)(mian)爆(bao)(bao)(bao)(bao)破(po)(po)是沿(yan)設(she)計開(kai)挖邊(bian)(bian)界布(bu)(bu)設(she)密(mi)集炮孔(kong)，采(cai)用(yong)不耦(ou)合裝(zhuang)(zhuang)(zhuang)藥(yao)或裝(zhuang)(zhuang)(zhuang)填(tian)低(di)(di)威力炸藥(yao)，在(zai)主(zhu)爆(bao)(bao)(bao)(bao)區(qu)(qu)爆(bao)(bao)(bao)(bao)破(po)(po)之(zhi)后(hou)起爆(bao)(bao)(bao)(bao)的以(yi)形成平(ping)整的開(kai)挖輪廓面(mian)(mian)(mian)的爆(bao)(bao)(bao)(bao)破(po)(po)作業。爆(bao)(bao)(bao)(bao)破(po)(po)技術的發(fa)展(zhan)是先出現光(guang)(guang)面(mian)(mian)(mian)爆(bao)(bao)(bao)(bao)破(po)(po)，然后(hou)衍生發(fa)展(zhan)為預(yu)裂(lie)爆(bao)(bao)(bao)(bao)破(po)(po)。聚能管國內歷(li)史與(yu)現狀，我國于(yu)1964～1965年在(zai)湖北陸水水電(dian)站施工中(zhong)做(zuo)過(guo)淺(qian)孔(kong)預(yu)裂(lie)爆(bao)(bao)(bao)(bao)破(po)(po)試(shi)驗，1965年鐵道部(bu)門在(zai)成昆鐵路建設(she)中(zhong)開(kai)始試(shi)驗光(guang)(guang)面(mian)(mian)(mian)爆(bao)(bao)(bao)(bao)破(po)(po)，1977年在(zai)西延線張家(jia)船工點，全(quan)長近200m的2000m2路塹邊(bian)(bian)坡全(quan)部(bu)采(cai)用(yong)光(guang)(guang)面(mian)(mian)(mian)爆(bao)(bao)(bao)(bao)破(po)(po)，爆(bao)(bao)(bao)(bao)破(po)(po)后(hou)邊(bian)(bian)坡平(ping)整穩定，殘留(liu)的半(ban)孔(kong)清晰可見(jian)，是鐵路建設(she)中(zhong)采(cai)用(yong)路塹光(guang)(guang)面(mian)(mian)(mian)爆(bao)(bao)(bao)(bao)破(po)(po)。

火索起爆法，導火索起爆法是利用導火索傳遞火焰點燃火雷管進而起爆炸藥。這種起爆法所需的材料有：導火索、火雷管和點火材料。專業礦用型雙向聚能管導火索起爆法操作簡單、靈活，使用方便，成本較低，廣泛應用于小型爆破和掘進。由于導火索的速燃、緩燃等弊病，在爆破中事故所占比重最大。不能多處裝藥同時起爆。導爆索起爆法，礦用型雙向聚能管價格用導(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)直接(jie)(jie)起(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)炸(zha)藥包(bao)的方法叫導(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)起(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)法。先用雷管起(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)導(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)，當導(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)的爆(bao)(bao)(bao)(bao)(bao)轟波傳至炸(zha)藥包(bao)時，將炸(zha)藥引爆(bao)(bao)(bao)(bao)(bao)。在需(xu)要延時分段(duan)(duan)起(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)的地方，將導(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)中接(jie)(jie)入繼(ji)爆(bao)(bao)(bao)(bao)(bao)管，就能(neng)達到導(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)毫(hao)秒爆(bao)(bao)(bao)(bao)(bao)破(po)的目的。這(zhe)種爆(bao)(bao)(bao)(bao)(bao)破(po)法所需(xu)起(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)材料有：雷管、導(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)和繼(ji)爆(bao)(bao)(bao)(bao)(bao)管等。導(dao)爆(bao)(bao)(bao)(bao)(bao)索(suo)起(qi)(qi)爆(bao)(bao)(bao)(bao)(bao)網路常用的有：串聯(lian)、簇并聯(lian)、單向(xiang)分段(duan)(duan)并聯(lian)和雙向(xiang)分段(duan)(duan)并聯(lian)等。