12350067-9745678912222㎡㎡㎡mmmmm24程12222123456789m245%6%7㎡8個4109.7246%%4.5.1ΦP30合小TgΦ2DN100。Q=Q1+Q2A958.4kgm3。R=6.88x10-3K0.25G2ρd5.25，v=3.69x10-4Gd20.5x10-3mGB16297-96）GB8978-96）50C一（）123456789123㎡m㎡㎡㎡座座座㎡㎡輛處㎡㎡122224145612345二1234㎡㎡mmmm㎡%.............................................1 .........................................3.........................................3.............................................3.............................................5.................................6..........................................6......................................9....................................10..............................13............................................13........................................13......................................14............................................14............................................15........................................16............................................1612..........................................17..........................................18..........................................21 ............................................26............................................27............................................28..............................34....................................34....................................34........................................35......................36..................37........................................38....................................38........................................39................................40........................................40............................................40........................................403..............................41........................................41............................................41 .................................