单词 | plunger piston |
释义 | > as lemmasplunger piston plunger piston n. (a) a solid cylindrical piston used in a plunger pump; (b) a solid piston used in a pressure gauge, etc., that is forced along its shaft by the pressure of the fluid behind it. ΚΠ 1830 Philos. Trans. (Royal Soc.) 120 123 The most convenient method of forming this estimate is by multiplying together, the diameter in inches squared..of the plunger piston, the height of the lifts in fathoms. 1890 Cent. Dict. Plunger-piston, the solid piston of a pressure-gage, steam-indicator, or some similar instrument. 1944 Sheboygan (Wisconsin) Press 22 Nov. 18/2 A bottle to be moved up and down like a plunger piston. 1984 Hydraulics & Pneumatics (Nexis) Mar. 80 Opposing the valve poppet is a plunger and plunger piston, biased by a light spring. < as lemmas |
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