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单词
hepplewhite-gray lamp
释义
Hepplewhite-Gray lamp
Hepplewhite-Gray lamp
[
′hep·əl‚wīt ′grā ‚lamp
]
(mining engineering)
A lamp which drew its air from the top down through four tubular pillars into the base, where the air fed the flame through a gauze ring; the outlet was through a metal chimney closed by a gauze disk.
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更新时间:2026/10/10 20:56:09