A.污水管
B.雨水管
C.通气管
D.膨胀管
A.污水管
B.雨水管
C.通气管
D.膨胀管
A.闸阀
B.球阀
C.蝶阀
D.水表
A.阀门
B.水泵
C.水表
D.消防栓
A.闸阀
B.球阀
C.蝶阀
D.水泵
A.必须相同
B.必须不同
C.可以不同
D.管径大时相同,管径小时不同
A.废水管
B.污水管
C.生活给水
D.热水给水管
A.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959760494649.png">
B.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959760539881.png">
C.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959760604403.png">
D.<img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959760676212.png">
A. <img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959760188481.png">
B. <img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959760254912.png">
C. <img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/1704959760327193.png">
D. <img src="https://cg-service.oss-cn-shanghai.aliyuncs.com/20240111/170495976042683.png">
A.弹性理论计算方法
B.实验分析方法
C.塑性内力重分布分析方法
D.弹塑性分析方法