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单词 purge cock
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purge cock
purge cock n. a cock for discharging fluid, sediment, dregs, etc., from a boiler or other apparatus.
ΚΠ
1886 Sci. Amer. Suppl. 4 Sept. 8897/3 When it becomes necessary to empty the receiver,..use is made of a purge-cock.
1925 J. T. Bowen Dairy Engin. xiii. 389 Condensers are always provided with a purge cock located at the highest point of the condenser.
2002 J. Madden & K. O. Smith Electr. Safety & Law (ed. 4) xv. 266 Purge cocks are provided on the pit luminaires; these should be opened and then the compressor started to purge any gas from within them.
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