出典:Wikipedia
出典:『Wikipedia』 (2011/06/24 16:10 UTC 版)
A valve is a device that regulates, directs or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically pipe fittings, but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure.
a well
avadavats
Tighten valve
to put forth one's eloquence―exert one's oratorical powers―speechify―declaim―harangue―rant―spout―hold forth―make oneself heard
the cloister
tuataras
a manger
the bow
the septum
wombats
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