實(shi)驗室(shi)管道(dao)工(gong)程(cheng)：實(shi)驗室(shi)管道(dao)系統的(de)布置(zhi)方(fang)式(shi)$n各(ge)種(zhong)管(guan)網(wang)都(dou)是(shi)由(you)總(zong)管(guan)、幹管和支(zhi)管三部分組(zu)成(cheng)。總管(guan)是(shi)指從(cong)室(shi)外管(guan)網(wang)到(dao)實(shi)驗室(shi)內的(de)管(guan)道，幹管是(shi)指從(cong)總(zong)管(guan)分送到(dao)各(ge)單(dan)元的(de)管(guan)道，支(zhi)管是(shi)指從(cong)幹管連接到(dao)實(shi)驗臺和實驗設備(bei)的(de)管(guan)道，各種(zhong)管(guan)道壹(yi)般總(zong)是(shi)以(yi)水平(ping)和垂(chui)直兩種(zhong)方(fang)式布置(zhi)。