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单词
sighting tube
释义
sighting tube
sighting tube
[
′sīd·iŋ ‚tüb
]
(engineering)
A tube, usually ceramic, inserted into a hot chamber whose temperature is to be measured; an optical pyrometer is sighted into the tube to observe the interior end of the tube to give a temperature reading.
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更新时间:2025/6/26 7:34:05