旋塞，又称栓塞。俗称考克（cock)。他动阀一种。
旋塞阀 plug valve ; Stopcock ; China cock
衬里三通旋塞阀 Lining T-Cock Valves
油封式旋塞阀 Lubricated plug valve
填料式旋塞阀 Gland packing plug valve ; Cland packing plug valve
三通旋塞 three way cock ; tee cock ; THREE-WAY STOPCOCK
衬套旋塞 sleeve cock
三通旋塞阀 three-way plug valve ; Three-way Stopcock ; three-way plug vingve ; wayplugvalve
排水旋塞 drain cock ; D cock ; thumb-twist drain plugs
四通旋塞阀 four-way plug valve ; four
从热水器旋塞排出的水，如果热水器没有损坏。
Water drained from the water heater faucet, if the water heater has not been damaged.
如果仅仅是季节性运行，则在寒冷环境下开启测试旋塞。
Open test cocks to drain in cold climates if only operated seasonally.
相对于打开易拉罐或玻璃瓶饮用的啤酒不同，桶装啤酒则是打开旋塞来饮用。
A draft beer is beer on tap, as opposed to beer from a can or bottle.
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