Crookes 
(krks), Sir William 1832-1919.
(krks), Sir William 1832-1919. British chemist and physicist who discovered thallium (1861), invented the radiometer (1875), and studied cathode rays.
| 单词 | Crookes |
| 释义 | Crookes (krks), Sir William 1832-1919. British chemist and physicist who discovered thallium (1861), invented the radiometer (1875), and studied cathode rays. |
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