The World Almanac & Book of FactsNewspaper Enterprise Association, 1928 |
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第 1 到 3 筆結果,共 78 筆
第 頁
... electric iron possible . This is that electric iron . When you use it a while you can see why Westinghouse was willing to pay that large sum for the invention . Hundreds of thousands of women are now using this iron . You will be too ...
... electric iron possible . This is that electric iron . When you use it a while you can see why Westinghouse was willing to pay that large sum for the invention . Hundreds of thousands of women are now using this iron . You will be too ...
第 151 頁
... electric field between the electrodes , descent directly from the theoretical work of J. C. the field being formed by solenoids through which Maxwell , who in 1835 , as a result of his researches in the current feeding the arc flows ...
... electric field between the electrodes , descent directly from the theoretical work of J. C. the field being formed by solenoids through which Maxwell , who in 1835 , as a result of his researches in the current feeding the arc flows ...
第 166 頁
... electricity generated by fuels brings such power into competition with water power , which forms but 34 % of all power in this country . Information from the National Electric Light Association shows that 1,500,000 customers par ...
... electricity generated by fuels brings such power into competition with water power , which forms but 34 % of all power in this country . Information from the National Electric Light Association shows that 1,500,000 customers par ...
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