| 单词 | Clark cell |
| 释义 | Word Frequency Clark cell(klɑːk) noun physics a cell having a mercury cathode surrounded by a paste of mercuric sulphate and a zinc anode in a saturated solution of zinc sulphate. Formerly used as a standard, its emf is 1.4345 volts Word origin C19: named after Hosiah Clark (died 1898), English scientist |
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