Full bore pipeline ball valves the channel diameter and the same diameter, only a small fluid resistance, but also easy to clean pipes.

全通径球阀的通道内径与管线内径一致，不但流体阻力小，也便于管道清理。

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Clean water can be drawn for up to several months after the rains have fallen through pipes underneath the DAMS or by digging a hole in the sand.

通过砂坝底下建造地下管道或者在沙中开挖蓄水洞，便可以在雨后连续几个月内抽取这些自然净化过的水。

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Usually, water pricing simply means that city dwellers pay for the cost of the pipes that transport it and the sewerage plants that clean it.

通常情况下，城市居民所支付的水价只不过是运输水的管道费用和污水处理厂的清理费用。

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And he is working with Nissen to see if a medical device made by Lipid Sciences can clean the primates' pipes by increasing good cholesterol.

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"All the pipes look shiny clean, no crud, " Mr. Cassidy said as he used a long, dental-like mirror to peer into tight, deep openings.

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The pipes are neatly painted and clean because tour groups come through the facility to learn how a pumping station works.

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