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单词 firebed
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firebed
firebed n. the surface in a grate or furnace on which the fuel sits.
ΚΠ
1804 Trans. Amer. Philos. Soc. 6 i. 95 The fire-bed is arched, parallel with the bottom, leaving a space of one foot high, for the passage of the flame.
1881 U.S. Patent 241,097 1/1 C is the fire-bed or furnace proper, which (as in the case of a circular furnace) may be in the center or eye of the furnace.
2000 P. W. B. Semmens & A. J. Goldfinch How Steam Locomotives really Work ii. 48 During the burning process, small particles of coal can be lifted off the firebed by the draught.
extracted from firen.int.
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