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(上接第10期第45页)1.DN50存水弯与排水管道甩口连接正误对照图1所示DN50存水弯与排水管道甩口连接的做法是不妥的,图1(a)是把排水管的甩口做在地面以下,DN50带承口的排
(Continued from page 10 on page 45) 1.DN50 trap and drain pipe throw connection is wrong contrast DN50 trap shown in Figure 1 and drain pipe rejection mouth connection is inappropriate, Figure 1 (a) Drainage is the rejection of the floor below the ground, DN50 with socket row