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Improvements to the hygrometer to wet and dry bulb
Improvements to the hygrometer to wet and dry bulb
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机译:改进干湿球湿度计
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163,197. Smethurst, H. April 17, 1920. Hygrometric apparatus.- In a wet-and-dry bulb hygrometer, the wick b supplying water from a container c to a cotton &c. bag a surrounding the wet bulb, is looped round the bag so as to retain the latter in position.
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