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【多选题】
有关雨水悬吊管的说法,下列哪项是正确的()。
A.
悬吊管管径不得小于连接管管径
B.
悬吊管管径不应大于200mm
C.
塑料管坡度不小于0.005
D.
铸铁管坡度不小于0.01
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参考解析：
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the area most seriously hit by La
B.
the first area influenced by La
C.
the only area monitored by satellites
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A.
frequency
B.
intensity
C.
duration
D.
route
【多选题】悬吊管安装的安装应符合哪些要求：（ ）。
A.
悬吊管的设置应首先选择以立管为中心，侧向对称布置方式；如不可能，可选择单侧布置方式。
B.
悬吊管与雨水斗出口的高差宜大于1m。
C.
悬吊管可无坡度敷设，但不得倒坡。
D.
悬吊管不宜穿越建筑物的膨胀缝、沉降缝和抗震缝，如必须穿越，应采取必要的补偿措施（设置伸缩器）。不宜穿越防火墙，如必须穿越需加防火套管或者阻火圈。