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单词 prism battery
释义

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prism battery
prism battery n. Obsolete rare a form of Leclanché battery in which the anode is a carbon plate in contact with two prisms formed from compressed manganese dioxide and carbon powder.
ΚΠ
a1884 E. H. Knight Pract. Dict. Mech. Suppl. 723/1 Prism Battery, a form of Leclanché battery in which the usual porous cup is dispensed with, and a pair of compressed prisms containing all the materials formerly used in the porous cup are substituted for it.
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