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单词
coal mining under buildings, railways and water-bodies
释义
coal mining under buildings, railways and water-bodies
“三下”采煤; 建筑物下、铁路下和水体下采煤技术的总称。
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on-receptor
on record
on-record
on record carriers
on red alert
on reflection
onreg'lar
on release
on relief
on remand
on remand pending
on repeated occasions
on report
on request
on request (o/r)
on-request system
on-request time sharing
on reserve
on-reserve
on resistance
on-resistance
on resistance temperature coefficient
on resonant, reactive circuit edge
on-resopnse
on-response
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更新时间：2026/7/23 15:40:41