| 单词 | plunger button | 
| 释义 | > as lemmasplunger button   plunger button  n. ΚΠ 1888    Times 11 Feb. 17/3  				A current of air..passes through the ducts in the machine, then through the plunger button, and distends the glass. 2001    Plastics News 		(Nexis)	 25 June 9  				A typical, manual pipette has an axial-type configuration with a nozzle and plunger button. < as lemmas | 
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