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special air return lane in mining area
释义
special air return lane in mining area
Encyclopedia
工学
矿井通风系统
释
special air return lane in mining area
采区专用回风巷
在采区巷道中专门用于回风,不得用于运料、安设电气设备的巷道。
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untranslated regions
untranslated regions (UTR)
untuned
untuned aerial
untuned amplifier
untwining rope pulse
untwinned
untwisted affine Kac Moody algebra
untwisted affine Kac-Moody algebra
U Nu
UNU
Unuk al Hai
Unukalhai
U-numbers
ununiformity
ununited skull
Unurgunite
unusual number
unusual plant
unusual quantifiers
unvarying
unvoiced sound
unvoised sound
unvulcanized
unweighted
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