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避难硐室
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避难硐室
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refuge chamber
避难硐室
煤矿井下发生灾害、人员无法撤出时,为防止有毒、有害气体的侵袭而设立的避难场所。
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bucket wheel ship unloader
bucket wheel staker-reclaimer
buckeye seed
bucking
bucking coil
bucking electric saw
Buckingham-Darcy law
bucking-out system
buckle
Buckley James estimator
Buckley-James estimator
buckling
buckling failure
buckling failure of rock formation
buckling folding
buckling instability
buckling mode
buck sampling
buckthorn family
buckwheat
buckwheat brown blotch
buckwheat downy mildew
buckwheat family
Buckwheat Flower Season
buckwheat hull pillow
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