| 单词 | plunger pole |
| 释义 | > as lemmasplunger pole plunger pole n. a hollow cylindrical piston used in a pump. ΚΠ 1840 Civil Engineer & Architect's Jrnl. 3 41/1 Motion is given to the piston, bucket, or plunger-pole of the pump. 1875 E. H. Knight Amer. Mech. Dict. III. 1752/1 (caption) G is a portion of a plunger-pole, showing the coupling of sections. 2002 Designfax (Nexis) 1 July 26 In an AC valve, anything that will prevent proper mating of the plunger pole faces..can cause noisy operation. < as lemmas |
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