单项选择题
A.200mm B.100mm C.300mm D.150mm
A.0.5m B.0.6m C.0.8m D.1.0m
A.氟利昂压缩式制冷,不应低于3.6m B.氨压缩式制冷,不应低于4.8m C.溴化锂吸收式制冷,不得小于1.2m D.溴化锂吸收式制冷,设备顶部距屋顶或楼板的距离,不得小于1.2m
A.0.5~1.8m/s B.0.6~1.5m/s C.0.8~1.8m/s D.1.6~1.5m/s
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