| 单词 | mud plunger |
| 释义 | > as lemmasmud plunger mud plunger n. a person employed to stir sediment in the manufacture of bleach (see quot. 1892). ΚΠ 1892 Labour Comm. Gloss. Mud plungers, men in the chemical industry engaged at bleach plant in stirring up the sediment from manganese and acid to extract the gas. < as lemmas |
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