在水管上敲二下 Twice on the pipe
上水管 feed water ; water supply ; water pipe
散热器上水管 HOSE RADIATOR OPPER
锅炉上水管 boiler feed water pipe
毛管上升水 [水文] Anastatic Water ; capillary rise water
毛管水上升 Capillary rise
毛管水上升高度 capillaryascent ; capillarylift
水上交通管制系统 Maritime traffic control system
散热装置上水管 HOSE RADIATOR OPPER
在地中海区域的早期文明中，拱形结构主要被运用在地下排水管上，但在地上建筑中首先发展并广泛使用拱门的是罗马人。
The arch was used by the early cultures of the Mediterranean area chiefly for underground drains, but it was the Romans who first developed and used the arch extensively in aboveground structures.
这些他们所谓的“会飞的马桶”常常落到开裂的水管上。
These “flying toilets”, as they are called, often land on fractured water-pipes.
装在喷头水管上的数据记录器，把水的流量和温度记录下来。
The data logger (attached to shower pipe) recorded the flow and temperature of the water.
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