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单词
self-acting door
释义
self-acting door
self-acting door
[
′self ¦ak·tiŋ ′dȯr
]
(mining engineering)
A ventilation door that is constructed of two halves which move on small pulleys and which are forced apart centrally as the trams come in contact with the converging beams that operate the door.
随便看
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nappie
nappier
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nappies covered
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nappily
nappiness
napping
nappingly
napping, to be caught/catch
nappmi
nappo
napposr
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nappr
napps
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nappy
nappy liner
nappy rash
napqi
napr
napra
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更新时间:2025/3/20 12:43:03