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单词 carbon lamp
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carbon lamp
carbon lamp n. = carbon light n. (b).With quot. 1879 cf. Jablochkoff n.
ΚΠ
1879 Manufacturer & Builder Aug. 173/1 The electric carbon lamps or candles of Jablochkoff were very defective.
1950 L. E. Hawker Physiol. Fungi vi. 183 Those [sporangiophores] of Pilobolus turn towards a tungsten lamp, which emits a high proportion of blue rays, more readily than to a carbon lamp of twice the total candle-power.
1992 Business Hist. Rev. 66 312 GE's and National's carbon lamps were considerably more expensive than those of some independent manufacturers.
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