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单词 pressure lamp
释义

pressure lamp

noun
A portable oil or paraffin lamp in which the fuel is forced up into the mantle or burner by air pressure in the reservoir, which can be increased by pumping with a plunger.The PT Ultra Prima Cemerlang factory uses thorium nitrate in its production of socks for pressure lamps (petromax)....
  • The day length was 14 h and additional illumination was provided by sodium high pressure lamps.
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更新时间:2024/11/10 18:54:32